diff --git a/lib/onebox.rb b/lib/onebox.rb
index c44f44f9..3d0292b0 100644
--- a/lib/onebox.rb
+++ b/lib/onebox.rb
@@ -4,6 +4,8 @@
 require "mustache"
 require "opengraph_parser"
 require "verbal_expressions"
+require "ostruct"
+require "moneta"
 
 require_relative "onebox/version"
 require_relative "onebox/preview"
@@ -11,7 +13,21 @@
 require_relative "onebox/engine"
 
 module Onebox
-  def self.preview(url, args={})
-    Preview.new(url, args)
+  DEFAULTS = {
+    cache: Moneta.new(:Memory, expires: true, serializer: :json)
+  }
+
+  @@defaults = DEFAULTS
+
+  def self.preview(url, options = Onebox.defaults)
+    Preview.new(url, options)
+  end
+
+  def self.defaults
+    @@defaults
+  end
+
+  def self.defaults=(options)
+    @@defaults = DEFAULTS.merge(options)
   end
 end
diff --git a/lib/onebox/engine.rb b/lib/onebox/engine.rb
index 9c0f01d1..a0438b23 100644
--- a/lib/onebox/engine.rb
+++ b/lib/onebox/engine.rb
@@ -10,30 +10,48 @@ def self.engines
       end.map(&method(:const_get))
     end
 
-    def initialize(link)
+    attr_reader :cache
+
+    def initialize(link, cache = Onebox.defaults)
       @url = link
-      @body = read
-      @data = extracted_data
+      @cache = cache
     end
 
     def to_html
-      Mustache.render(template, @data)
+      Mustache.render(template, record)
     end
 
     private
 
-    def read
-      Nokogiri::HTML(open(@url))
+    def record
+      if cache.key?(@url)
+        cache.fetch(@url)
+      else
+        cache.store(@url, data)
+      end
+    end
+
+    # raises error if not defined in onebox engine
+    # in each onebox, uses either Nokogiri or OpenGraph to get raw HTML from url
+    def raw
+      raise NoMethodError, "Engines need to implement this method"
     end
 
     def template
       File.read(File.join("templates", "#{template_name}.handlebars"))
     end
 
+    # calculates handlebars template name for onebox using name of engine
     def template_name
       self.class.name.split("::").last.downcase.gsub(/onebox/, "")
     end
 
+    # raises error if not defined in onebox engine
+    # in each onebox, returns hash of desired onebox content
+    def data
+      raise NoMethodError, "Engines need this method defined"
+    end
+
     module ClassMethods
       def ===(object)
         if object.kind_of?(String)
@@ -51,6 +69,7 @@ def matches(&block)
 end
 
 require_relative "engine/open_graph"
+require_relative "engine/html"
 require_relative "engine/example_onebox"
 require_relative "engine/amazon_onebox"
 require_relative "engine/bliptv_onebox"
diff --git a/lib/onebox/engine/amazon_onebox.rb b/lib/onebox/engine/amazon_onebox.rb
index 1667fa4c..338e8090 100644
--- a/lib/onebox/engine/amazon_onebox.rb
+++ b/lib/onebox/engine/amazon_onebox.rb
@@ -2,6 +2,7 @@ module Onebox
   module Engine
     class AmazonOnebox
       include Engine
+      include HTML
 
       matches do
         #/^https?:\/\/(?:www\.)?amazon.(com|ca)\/.*$/
@@ -10,13 +11,13 @@ class AmazonOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          name: @body.css("html body h1").inner_text,
-          image: @body.css("html body #main-image").first["src"],
-          description: @body.css("html body #postBodyPS").inner_text,
-          price: @body.css("html body .priceLarge").inner_text
+          name: raw.css("h1").inner_text,
+          image: raw.css("#main-image").first["src"],
+          description: raw.css("#postBodyPS").inner_text,
+          price: raw.css(".priceLarge").inner_text
         }
       end
     end
diff --git a/lib/onebox/engine/bliptv_onebox.rb b/lib/onebox/engine/bliptv_onebox.rb
index bee111a5..ae5e8af2 100644
--- a/lib/onebox/engine/bliptv_onebox.rb
+++ b/lib/onebox/engine/bliptv_onebox.rb
@@ -11,13 +11,13 @@ class BliptvOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images[0],
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/clikthrough_onebox.rb b/lib/onebox/engine/clikthrough_onebox.rb
index 974e1068..f2c9d450 100644
--- a/lib/onebox/engine/clikthrough_onebox.rb
+++ b/lib/onebox/engine/clikthrough_onebox.rb
@@ -11,11 +11,11 @@ class ClikThroughOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          description: @body.description
+          title: raw.title,
+          description: raw.description
         }
       end
     end
diff --git a/lib/onebox/engine/college_humor_onebox.rb b/lib/onebox/engine/college_humor_onebox.rb
index 77678710..c8d0baa1 100644
--- a/lib/onebox/engine/college_humor_onebox.rb
+++ b/lib/onebox/engine/college_humor_onebox.rb
@@ -11,13 +11,13 @@ class CollegeHumorOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images[0],
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/dailymotion_onebox.rb b/lib/onebox/engine/dailymotion_onebox.rb
index c134e3e5..bfed1993 100644
--- a/lib/onebox/engine/dailymotion_onebox.rb
+++ b/lib/onebox/engine/dailymotion_onebox.rb
@@ -11,13 +11,13 @@ class DailymotionOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description,
-          video: @body.metadata[:video][1][:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video][1][:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/dotsub_onebox.rb b/lib/onebox/engine/dotsub_onebox.rb
index 68cbeb81..a1a1d7af 100644
--- a/lib/onebox/engine/dotsub_onebox.rb
+++ b/lib/onebox/engine/dotsub_onebox.rb
@@ -11,13 +11,13 @@ class DotsubOnebox
 
       private
 
-      def extracted_data
+      def data
         {
-          url: @body.metadata[:url].first[:_value],
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          url: @url,
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/example_onebox.rb b/lib/onebox/engine/example_onebox.rb
index 0846dad7..539faad5 100644
--- a/lib/onebox/engine/example_onebox.rb
+++ b/lib/onebox/engine/example_onebox.rb
@@ -2,6 +2,7 @@ module Onebox
   module Engine
     class ExampleOnebox
       include Engine
+      include HTML
 
       matches do
         find "example.com"
@@ -9,14 +10,14 @@ class ExampleOnebox
 
       private
 
-      def extracted_data
+      def data
         {
-          header: @body.css("html body h1")
+          header: raw.css("h1").inner_text
         }
       end
 
       def template
-        %|<div class="onebox">{{{header}}}</div>|
+        %|<div class="onebox">{{header}}</div>|
       end
     end
   end
diff --git a/lib/onebox/engine/flickr_onebox.rb b/lib/onebox/engine/flickr_onebox.rb
index 0dfa3a4e..3c426673 100644
--- a/lib/onebox/engine/flickr_onebox.rb
+++ b/lib/onebox/engine/flickr_onebox.rb
@@ -11,12 +11,12 @@ class FlickrOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images[0],
-          description: @body.description
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description
         }
       end
     end
diff --git a/lib/onebox/engine/funny_or_die_onebox.rb b/lib/onebox/engine/funny_or_die_onebox.rb
index 3c9b07ae..67e3e31e 100644
--- a/lib/onebox/engine/funny_or_die_onebox.rb
+++ b/lib/onebox/engine/funny_or_die_onebox.rb
@@ -11,13 +11,13 @@ class FunnyOrDieOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description,
-          video: @body.metadata[:video].first[:url].first[:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:url].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/html.rb b/lib/onebox/engine/html.rb
new file mode 100644
index 00000000..ec1bc9e4
--- /dev/null
+++ b/lib/onebox/engine/html.rb
@@ -0,0 +1,11 @@
+module Onebox
+  module Engine
+    module HTML
+      private
+
+      def raw
+        @raw ||= Nokogiri::HTML(open(@url))
+      end
+    end
+  end
+end
diff --git a/lib/onebox/engine/hulu_onebox.rb b/lib/onebox/engine/hulu_onebox.rb
index 33c1a23f..a9c49fd3 100644
--- a/lib/onebox/engine/hulu_onebox.rb
+++ b/lib/onebox/engine/hulu_onebox.rb
@@ -11,13 +11,13 @@ class HuluOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images[0],
-          description: @body.description,
-          video: @body.metadata[:video][1][:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video][1][:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/nfb_onebox.rb b/lib/onebox/engine/nfb_onebox.rb
index 2a89540a..94b0714a 100644
--- a/lib/onebox/engine/nfb_onebox.rb
+++ b/lib/onebox/engine/nfb_onebox.rb
@@ -11,12 +11,12 @@ class NFBOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          title: raw.title,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/open_graph.rb b/lib/onebox/engine/open_graph.rb
index c8d0785e..5f9c7f8e 100644
--- a/lib/onebox/engine/open_graph.rb
+++ b/lib/onebox/engine/open_graph.rb
@@ -1,8 +1,10 @@
 module Onebox
   module Engine
     module OpenGraph
-      def read
-        ::OpenGraph.new(@url)
+      private
+
+      def raw
+        @raw ||= ::OpenGraph.new(@url)
       end
     end
   end
diff --git a/lib/onebox/engine/qik_onebox.rb b/lib/onebox/engine/qik_onebox.rb
index e15449e0..746705fc 100644
--- a/lib/onebox/engine/qik_onebox.rb
+++ b/lib/onebox/engine/qik_onebox.rb
@@ -2,6 +2,7 @@ module Onebox
   module Engine
     class QikOnebox
       include Engine
+      include HTML
 
       matches do
         # /^https?\:\/\/qik\.com\/video\/.*$/
@@ -10,11 +11,11 @@ class QikOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.css(".info h2").inner_text,
-          image: @body.css(".userphoto").first["src"]
+          title: raw.css(".info h2").inner_text,
+          image: raw.css(".userphoto").first["src"]
         }
       end
     end
diff --git a/lib/onebox/engine/revision3_onebox.rb b/lib/onebox/engine/revision3_onebox.rb
index 4ca96d02..809b5ce8 100644
--- a/lib/onebox/engine/revision3_onebox.rb
+++ b/lib/onebox/engine/revision3_onebox.rb
@@ -11,13 +11,13 @@ class Revision3Onebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/slideshare_onebox.rb b/lib/onebox/engine/slideshare_onebox.rb
index 7e08feae..0aea8b9d 100644
--- a/lib/onebox/engine/slideshare_onebox.rb
+++ b/lib/onebox/engine/slideshare_onebox.rb
@@ -11,12 +11,12 @@ class SlideshareOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description
         }
       end
     end
diff --git a/lib/onebox/engine/sound_cloud_onebox.rb b/lib/onebox/engine/sound_cloud_onebox.rb
index 500be7fc..18a9e5e0 100644
--- a/lib/onebox/engine/sound_cloud_onebox.rb
+++ b/lib/onebox/engine/sound_cloud_onebox.rb
@@ -11,13 +11,13 @@ class SoundCloudOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description,
-          video: @body.metadata[:video][1][:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video][1][:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/stack_exchange_onebox.rb b/lib/onebox/engine/stack_exchange_onebox.rb
index 31d9be24..f4827bea 100644
--- a/lib/onebox/engine/stack_exchange_onebox.rb
+++ b/lib/onebox/engine/stack_exchange_onebox.rb
@@ -2,6 +2,7 @@ module Onebox
   module Engine
     class StackExchangeOnebox
       include Engine
+      include HTML
 
       matches do
         # /^http:\/\/(?:(?:(?<subsubdomain>\w*)\.)?(?<subdomain>\w*)\.)?(?<domain>#{DOMAINS.join('|')})\.com\/(?:questions|q)\/(?<question>\d*)/
@@ -10,11 +11,11 @@ class StackExchangeOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.css(".question-hyperlink").inner_text,
-          question: @body.css(".question .post-text p").first.inner_text
+          title: raw.css(".question-hyperlink").inner_text,
+          question: raw.css(".question .post-text p").first.inner_text
         }
       end
     end
diff --git a/lib/onebox/engine/ted_onebox.rb b/lib/onebox/engine/ted_onebox.rb
index b33be375..eed69a50 100644
--- a/lib/onebox/engine/ted_onebox.rb
+++ b/lib/onebox/engine/ted_onebox.rb
@@ -11,12 +11,12 @@ class TedOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description
         }
       end
     end
diff --git a/lib/onebox/engine/viddler_onebox.rb b/lib/onebox/engine/viddler_onebox.rb
index 7097f468..b15cd021 100644
--- a/lib/onebox/engine/viddler_onebox.rb
+++ b/lib/onebox/engine/viddler_onebox.rb
@@ -11,13 +11,13 @@ class ViddlerOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/vimeo_onebox.rb b/lib/onebox/engine/vimeo_onebox.rb
index ba3f339b..0ee24809 100644
--- a/lib/onebox/engine/vimeo_onebox.rb
+++ b/lib/onebox/engine/vimeo_onebox.rb
@@ -11,13 +11,13 @@ class VimeoOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images[0],
-          description: @body.description,
-          video: @body.metadata[:video].first[:_value]
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description,
+          video: raw.metadata[:video].first[:_value]
         }
       end
     end
diff --git a/lib/onebox/engine/wikipedia_onebox.rb b/lib/onebox/engine/wikipedia_onebox.rb
index c3a8a67c..b0cbfbe7 100644
--- a/lib/onebox/engine/wikipedia_onebox.rb
+++ b/lib/onebox/engine/wikipedia_onebox.rb
@@ -2,6 +2,7 @@ module Onebox
   module Engine
     class WikipediaOnebox
       include Engine
+      include HTML
 
       matches do
         # /^https?:\/\/.*wikipedia\.(com|org)\/.*$/
@@ -10,12 +11,12 @@ class WikipediaOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          name: @body.css("html body h1").inner_text,
-          image: @body.css(".infobox .image img").first["src"],
-          description: @body.css("html body p").inner_text
+          name: raw.css("html body h1").inner_text,
+          image: raw.css(".infobox .image img").first["src"],
+          description: raw.css("html body p").inner_text
         }
       end
     end
diff --git a/lib/onebox/engine/yfrog_onebox.rb b/lib/onebox/engine/yfrog_onebox.rb
index e4c4902f..207e125c 100644
--- a/lib/onebox/engine/yfrog_onebox.rb
+++ b/lib/onebox/engine/yfrog_onebox.rb
@@ -11,12 +11,12 @@ class YfrogOnebox
 
       private
 
-      def extracted_data
+      def data
         {
           url: @url,
-          title: @body.title,
-          image: @body.images.first,
-          description: @body.description
+          title: raw.title,
+          image: raw.images.first,
+          description: raw.description
         }
       end
     end
diff --git a/lib/onebox/preview.rb b/lib/onebox/preview.rb
index cba8224e..a497fab0 100644
--- a/lib/onebox/preview.rb
+++ b/lib/onebox/preview.rb
@@ -1,7 +1,11 @@
 module Onebox
   class Preview
-    def initialize(link)
+    attr_reader :cache
+
+    def initialize(link, parameters = Onebox.defaults)
       @url = link
+      @options = parameters
+      @cache = options.cache
       @engine = Matcher.new(@url).oneboxed
     end
 
@@ -9,10 +13,14 @@ def to_s
       engine.to_html
     end
 
+    def options
+      OpenStruct.new(@options)
+    end
+
     private
 
     def engine
-      @engine.new(@url)
+      @engine.new(@url, cache)
     end
 
     class InvalidURI < StandardError
diff --git a/onebox.gemspec b/onebox.gemspec
index 19403f08..3133f2c2 100644
--- a/onebox.gemspec
+++ b/onebox.gemspec
@@ -23,6 +23,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "nokogiri", "~> 1.4"
   spec.add_runtime_dependency "opengraph_parser", "~> 0.2"
   spec.add_runtime_dependency "verbal_expressions", "~> 0.1"
+  spec.add_runtime_dependency "moneta", "~> 0.7"
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 2.14"
diff --git a/spec/lib/onebox/engine/amazon_spec.rb b/spec/lib/onebox/engine/amazon_spec.rb
index ef00f68c..55f471eb 100644
--- a/spec/lib/onebox/engine/amazon_spec.rb
+++ b/spec/lib/onebox/engine/amazon_spec.rb
@@ -1,14 +1,16 @@
 require "spec_helper"
 
 describe Onebox::Engine::AmazonOnebox do
+  let(:link) { "http://amazon.com" }
+  before do
+    fake(link, response("amazon.response"))
+  end
+
+  it_behaves_like "engines"
+
   describe "#to_html" do
-    let(:link) { "http://example.com" }
     let(:html) { described_class.new(link).to_html }
 
-    before do
-      fake(link, response("amazon.response"))
-    end
-
     it "returns the product title" do
       expect(html).to include("Knit Noro: Accessories: 30 Colorful Little Knits [Hardcover]")
     end
@@ -28,6 +30,5 @@
     it "returns the product URL" do
       expect(html).to include(link)
     end
-
   end
 end
diff --git a/spec/lib/onebox/engine/bliptv_spec.rb b/spec/lib/onebox/engine/bliptv_spec.rb
index 9c8abddb..4254d3bd 100644
--- a/spec/lib/onebox/engine/bliptv_spec.rb
+++ b/spec/lib/onebox/engine/bliptv_spec.rb
@@ -2,29 +2,33 @@
 
 describe Onebox::Engine::BliptvOnebox do
   let(:link) { "http://blip.tv" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("bliptv.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("SC2L Week 3 - Axiom vs Acer G6")
-  end
+  it_behaves_like "engines"
 
-  it "returns image" do
-    expect(html).to include("Striderdoom-SC2LWeek3AxiomVsAcerG6178-416.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Acer and Axiom go head to head in week 3!")
-  end
+    it "returns video title" do
+      expect(html).to include("SC2L Week 3 - Axiom vs Acer G6")
+    end
 
-  it "returns video" do
-    expect(html).to include("http://blip.tv/day9tv/sc2l-week-3-axiom-vs-acer-g6-6623829")
-  end
+    it "returns image" do
+      expect(html).to include("Striderdoom-SC2LWeek3AxiomVsAcerG6178-416.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Acer and Axiom go head to head in week 3!")
+    end
+
+    it "returns video" do
+      expect(html).to include("http://blip.tv/day9tv/sc2l-week-3-axiom-vs-acer-g6-6623829")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/clikthrough_spec.rb b/spec/lib/onebox/engine/clikthrough_spec.rb
index aadabe4a..2c72dd10 100644
--- a/spec/lib/onebox/engine/clikthrough_spec.rb
+++ b/spec/lib/onebox/engine/clikthrough_spec.rb
@@ -2,21 +2,25 @@
 
 describe Onebox::Engine::ClikThroughOnebox do
   let(:link) { "http://www.clickthough.com"}
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("clikthrough.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Keri Hilson - Knock You Down")
-  end
+  it_behaves_like "engines"
 
-  it "returns video description" do
-    expect(html).to include("Keri Hilson gets taken down by love once again")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
+
+    it "returns video title" do
+      expect(html).to include("Keri Hilson - Knock You Down")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Keri Hilson gets taken down by love once again")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/college_humor_spec.rb b/spec/lib/onebox/engine/college_humor_spec.rb
index 7d449d3e..d3810678 100644
--- a/spec/lib/onebox/engine/college_humor_spec.rb
+++ b/spec/lib/onebox/engine/college_humor_spec.rb
@@ -2,29 +2,33 @@
 
 describe Onebox::Engine::CollegeHumorOnebox do
   let(:link) { "http://collegehumor.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("collegehumor.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Mitt Romney Style (Gangnam Style Parody)")
-  end
+  it_behaves_like "engines"
 
-  it "returns video image" do
-    expect(html).to include("a9febe641d5beb264bbab0de49272e5a-mitt-romney-style-gangnam-style-parody.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Heyyy wealthy ladies!&quot;Mitt Romney Style&quot; is now available on iTunes")
-  end
+    it "returns video title" do
+      expect(html).to include("Mitt Romney Style (Gangnam Style Parody)")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("moogaloop.1.0.31.swf?clip_id=6830834&amp;use_node_id=true&amp;og=1&amp;auto=true")
-  end
+    it "returns video image" do
+      expect(html).to include("a9febe641d5beb264bbab0de49272e5a-mitt-romney-style-gangnam-style-parody.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Heyyy wealthy ladies!&quot;Mitt Romney Style&quot; is now available on iTunes")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("moogaloop.1.0.31.swf?clip_id=6830834&amp;use_node_id=true&amp;og=1&amp;auto=true")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/dailymotion_spec.rb b/spec/lib/onebox/engine/dailymotion_spec.rb
index 22924260..2d7ba193 100644
--- a/spec/lib/onebox/engine/dailymotion_spec.rb
+++ b/spec/lib/onebox/engine/dailymotion_spec.rb
@@ -2,31 +2,35 @@
 
 describe Onebox::Engine::DailymotionOnebox do
   let(:link) { "http://dailymotion.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("dailymotion.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Two Door Cinema Club - Les Vielles Charrues 2013.")
-  end
+  it_behaves_like "engines"
 
-  it "returns video image" do
-    expect(html).to include("526x297-bxE.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Vibrez au son de l&#39;electro-pop des Irlandais de Two Door Cinema Club,")
-  end
+    it "returns video title" do
+      expect(html).to include("Two Door Cinema Club - Les Vielles Charrues 2013.")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("http://www.dailymotion.com/swf/video/x12h020?autoPlay=1")
-  end
+    it "returns video image" do
+      expect(html).to include("526x297-bxE.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Vibrez au son de l&#39;electro-pop des Irlandais de Two Door Cinema Club,")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("http://www.dailymotion.com/swf/video/x12h020?autoPlay=1")
+    end
 
-  it "returns video embed code"
+    it "returns video embed code"
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/dotsub_spec.rb b/spec/lib/onebox/engine/dotsub_spec.rb
index 91a41d1e..3542a4b2 100644
--- a/spec/lib/onebox/engine/dotsub_spec.rb
+++ b/spec/lib/onebox/engine/dotsub_spec.rb
@@ -1,32 +1,36 @@
 require "spec_helper"
 
 describe Onebox::Engine::DotsubOnebox do
-  let(:link) { "http://funnyordie.com" }
-  let(:html) { described_class.new(link).to_html }
-
+  let(:link) { "http://dotsub.com/view/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78" }
   before do
     fake(link, response("dotsub.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Twitter in Plain English")
-  end
+  it_behaves_like "engines"
 
-  it "returns video description" do
-    # og:decription tag spelled wrong in http response
-    pending
-    expect(html).to include("A short explanation of the micro-blogging service, Twitter.")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video photo" do
-    expect(html).to include("/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78/p")
-  end
+    it "returns video title" do
+      expect(html).to include("Twitter in Plain English")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("dotsub.com/media/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78/m/flv/")
-  end
+    it "returns video description" do
+      # og:decription tag spelled wrong in http response
+      pending
+      expect(html).to include("A short explanation of the micro-blogging service, Twitter.")
+    end
+
+    it "returns video photo" do
+      expect(html).to include("/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78/p")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("dotsub.com/media/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78/m/flv/")
+    end
 
-  it "returns URL" do
-    expect(html).to include("http://dotsub.com/view/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78")
+    it "returns URL" do
+      expect(html).to include("http://dotsub.com/view/665bd0d5-a9f4-4a07-9d9e-b31ba926ca78")
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/example_spec.rb b/spec/lib/onebox/engine/example_spec.rb
index f6263643..29fd7b4e 100644
--- a/spec/lib/onebox/engine/example_spec.rb
+++ b/spec/lib/onebox/engine/example_spec.rb
@@ -1,16 +1,18 @@
 require "spec_helper"
 
 describe Onebox::Engine::ExampleOnebox do
+  let(:link) { "http://example.com" }
+  before do
+    fake(link, response("example.response"))
+  end
+
+  it_behaves_like "engines"
+
   describe "#to_html" do
-    let(:link) { "http://example.com" }
     let(:html) { described_class.new(link).to_html }
 
-    before do
-      fake(link, response("example.response"))
-    end
-
     it "returns template if given valid data" do
-      expect(html).to include(onebox_view("<h1>Example Domain 1</h1>"))
+      expect(html).to include(onebox_view("Example Domain 1"))
     end
   end
 end
diff --git a/spec/lib/onebox/engine/flickr_spec.rb b/spec/lib/onebox/engine/flickr_spec.rb
index 72d35f95..4c526108 100644
--- a/spec/lib/onebox/engine/flickr_spec.rb
+++ b/spec/lib/onebox/engine/flickr_spec.rb
@@ -2,25 +2,29 @@
 
 describe Onebox::Engine::FlickrOnebox do
   let(:link) { "http://flickr.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("flickr.response"))
   end
 
-  it "returns photo title" do
-    expect(html).to include("Los Angeles View 2011")
-  end
+  it_behaves_like "engines"
 
-  it "returns photo" do
-    expect(html).to include("6038315155_2875860c4b_z.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns photo description" do
-    expect(html).to include("The view from the Griffith Observatory, Los Angeles; July 2011")
-  end
+    it "returns photo title" do
+      expect(html).to include("Los Angeles View 2011")
+    end
+
+    it "returns photo" do
+      expect(html).to include("6038315155_2875860c4b_z.jpg")
+    end
+
+    it "returns photo description" do
+      expect(html).to include("The view from the Griffith Observatory, Los Angeles; July 2011")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/funny_or_die_spec.rb b/spec/lib/onebox/engine/funny_or_die_spec.rb
index 8a5894bc..31a816c5 100644
--- a/spec/lib/onebox/engine/funny_or_die_spec.rb
+++ b/spec/lib/onebox/engine/funny_or_die_spec.rb
@@ -2,29 +2,33 @@
 
 describe Onebox::Engine::FunnyOrDieOnebox do
   let(:link) { "http://funnyordie.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("funnyordie.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("The Landlord")
-  end
+  it_behaves_like "engines"
 
-  it "returns video photo" do
-    expect(html).to include("c480x270_18.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Will Ferrell meets his landlord.")
-  end
+    it "returns video title" do
+      expect(html).to include("The Landlord")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("http://www.funnyordie.com/videos/74/the-landlord-from-will-ferrell-and-adam-ghost-panther-mckay")
-  end
+    it "returns video photo" do
+      expect(html).to include("c480x270_18.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Will Ferrell meets his landlord.")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("http://www.funnyordie.com/videos/74/the-landlord-from-will-ferrell-and-adam-ghost-panther-mckay")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/hulu_spec.rb b/spec/lib/onebox/engine/hulu_spec.rb
index 1673aad3..16402659 100644
--- a/spec/lib/onebox/engine/hulu_spec.rb
+++ b/spec/lib/onebox/engine/hulu_spec.rb
@@ -2,29 +2,33 @@
 
 describe Onebox::Engine::HuluOnebox do
   let(:link) { "http://hulu.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("hulu.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("The Awesomes: Pilot, Part 1")
-  end
+  it_behaves_like "engines"
 
-  it "returns photo" do
-    expect(html).to include("http://ib3.huluim.com/video/60245466?region=US&amp;size=600x400")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("After Mr. Awesome decides to retire and disband The Awesomes")
-  end
+    it "returns video title" do
+      expect(html).to include("The Awesomes: Pilot, Part 1")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("https://secure.hulu.com/embed/0-us7uHJgevua5TeiGwCxQ")
-  end
+    it "returns photo" do
+      expect(html).to include("http://ib3.huluim.com/video/60245466?region=US&amp;size=600x400")
+    end
+
+    it "returns video description" do
+      expect(html).to include("After Mr. Awesome decides to retire and disband The Awesomes")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("https://secure.hulu.com/embed/0-us7uHJgevua5TeiGwCxQ")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/nfb_spec.rb b/spec/lib/onebox/engine/nfb_spec.rb
index 285889ec..5b35bd07 100644
--- a/spec/lib/onebox/engine/nfb_spec.rb
+++ b/spec/lib/onebox/engine/nfb_spec.rb
@@ -2,30 +2,34 @@
 
 describe Onebox::Engine::NFBOnebox do
   let(:link) { "http://nfb.ca" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("nfb.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Overdose")
-  end
+  it_behaves_like "engines"
 
-  it "returns video description" do
-    expect(html).to include("With school, tennis lessons, swimming lessons, art classes,")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video URL" do
-    expect(html).to include("http://www.nfb.ca/film/overdose_en/")
-  end
+    it "returns video title" do
+      expect(html).to include("Overdose")
+    end
 
-  it "returns the video embed code" do
-    pending
-    expect(html).to include("")
-  end
+    it "returns video description" do
+      expect(html).to include("With school, tennis lessons, swimming lessons, art classes,")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("http://www.nfb.ca/film/overdose_en/")
+    end
+
+    it "returns the video embed code" do
+      pending
+      expect(html).to include("")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/qik_spec.rb b/spec/lib/onebox/engine/qik_spec.rb
index 755c6a27..460896ba 100644
--- a/spec/lib/onebox/engine/qik_spec.rb
+++ b/spec/lib/onebox/engine/qik_spec.rb
@@ -1,14 +1,16 @@
 require "spec_helper"
 
 describe Onebox::Engine::QikOnebox do
+  let(:link) { "http://qik.com" }
+  before do
+    fake(link, response("qik.response"))
+  end
+
+  it_behaves_like "engines"
+
   describe "#to_html" do
-    let(:link) { "http://qik.com" }
     let(:html) { described_class.new(link).to_html }
 
-    before do
-      fake(link, response("qik.response"))
-    end
-
     it "returns the video title" do
       expect(html).to include("20910")
     end
diff --git a/spec/lib/onebox/engine/revision3_spec.rb b/spec/lib/onebox/engine/revision3_spec.rb
index 0eb868b0..4fefbe73 100644
--- a/spec/lib/onebox/engine/revision3_spec.rb
+++ b/spec/lib/onebox/engine/revision3_spec.rb
@@ -1,32 +1,36 @@
 require "spec_helper"
 
 describe Onebox::Engine::Revision3Onebox do
-  let(:link) { "http://collegehumor.com" }
-  let(:html) { described_class.new(link).to_html }
-
+  let(:link) { "http://revision3.com" }
   before do
     fake(link, response("revision3.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Blue Shark Bites Diver&#39;s Arm")
-  end
+  it_behaves_like "engines"
 
-  it "returns video image" do
-    expect(html).to include("discoverysharks--0029--blue-sharks--medium.thumb.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Blue Sharks swimming and eating in the open ocean.")
-  end
+    it "returns video title" do
+      expect(html).to include("Blue Shark Bites Diver&#39;s Arm")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("https://revision3.com/player-v22668")
-  end
+    it "returns video image" do
+      expect(html).to include("discoverysharks--0029--blue-sharks--medium.thumb.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Blue Sharks swimming and eating in the open ocean.")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("https://revision3.com/player-v22668")
+    end
 
-  it "returns video embed code"
+    it "returns video embed code"
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/slideshare_spec.rb b/spec/lib/onebox/engine/slideshare_spec.rb
index e33f1b6b..312cad51 100644
--- a/spec/lib/onebox/engine/slideshare_spec.rb
+++ b/spec/lib/onebox/engine/slideshare_spec.rb
@@ -2,25 +2,29 @@
 
 describe Onebox::Engine::SlideshareOnebox do
   let(:link) { "http://slideshare.net" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("slideshare.response"))
   end
 
-  it "returns presentation title" do
-    expect(html).to include("12 Local Traditions That")
-  end
+  it_behaves_like "engines"
 
-  it "returns presentation description" do
-    expect(html).to include("12 Local traditions that will make")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns presentation image" do
-    expect(html).to include("12localtraditions-130729070157-phpapp01-thumbnail-4")
-  end
+    it "returns presentation title" do
+      expect(html).to include("12 Local Traditions That")
+    end
+
+    it "returns presentation description" do
+      expect(html).to include("12 Local traditions that will make")
+    end
+
+    it "returns presentation image" do
+      expect(html).to include("12localtraditions-130729070157-phpapp01-thumbnail-4")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/sound_cloud_spec.rb b/spec/lib/onebox/engine/sound_cloud_spec.rb
index 95cf9f30..6863509d 100644
--- a/spec/lib/onebox/engine/sound_cloud_spec.rb
+++ b/spec/lib/onebox/engine/sound_cloud_spec.rb
@@ -1,32 +1,36 @@
 require "spec_helper"
 
 describe Onebox::Engine::SoundCloudOnebox do
-  let(:link) { "http://dailymotion.com" }
-  let(:html) { described_class.new(link).to_html }
-
+  let(:link) { "http://soundcloud.com" }
   before do
     fake(link, response("soundcloud.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Penguin Prison - Worse It Gets (RAC Mix)")
-  end
+  it_behaves_like "engines"
 
-  it "returns video image" do
-    expect(html).to include("artworks-000033643332-vpuznu-t500x500.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Remix by André Allen Anjos.")
-  end
+    it "returns video title" do
+      expect(html).to include("Penguin Prison - Worse It Gets (RAC Mix)")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("Remix by André Allen Anjos.")
-  end
+    it "returns video image" do
+      expect(html).to include("artworks-000033643332-vpuznu-t500x500.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Remix by André Allen Anjos.")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("Remix by André Allen Anjos.")
+    end
 
-  it "returns video embed code"
+    it "returns video embed code"
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/stack_exchange_spec.rb b/spec/lib/onebox/engine/stack_exchange_spec.rb
index d52a7e5c..edcab6fb 100644
--- a/spec/lib/onebox/engine/stack_exchange_spec.rb
+++ b/spec/lib/onebox/engine/stack_exchange_spec.rb
@@ -1,14 +1,16 @@
 require "spec_helper"
 
 describe Onebox::Engine::StackExchangeOnebox do
+  let(:link) { "http://stackexchange.com" }
+  before do
+    fake(link, response("stackexchange.response"))
+  end
+
+  it_behaves_like "engines"
+
   describe "#to_html" do
-    let(:link) { "http://stackexchange.com" }
     let(:html) { described_class.new(link).to_html }
 
-    before do
-      fake(link, response("stackexchange.response"))
-    end
-
     it "returns the question title" do
       expect(html).to include("Concept behind these 4 lines of tricky C++ code")
     end
diff --git a/spec/lib/onebox/engine/ted_spec.rb b/spec/lib/onebox/engine/ted_spec.rb
index d4d3813c..33941e95 100644
--- a/spec/lib/onebox/engine/ted_spec.rb
+++ b/spec/lib/onebox/engine/ted_spec.rb
@@ -2,25 +2,29 @@
 
 describe Onebox::Engine::TedOnebox do
   let(:link) { "http://ted.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("ted.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Eli Beer: The fastest ambulance? A motorcycle")
-  end
+  it_behaves_like "engines"
 
-  it "returns video photo" do
-    expect(html).to include("aa8d0403aec3466d031e3e1c1605637d84d6a07d_389x292.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("As a young EMT on a Jerusalem ambulance")
-  end
+    it "returns video title" do
+      expect(html).to include("Eli Beer: The fastest ambulance? A motorcycle")
+    end
+
+    it "returns video photo" do
+      expect(html).to include("aa8d0403aec3466d031e3e1c1605637d84d6a07d_389x292.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("As a young EMT on a Jerusalem ambulance")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/viddler_spec.rb b/spec/lib/onebox/engine/viddler_spec.rb
index f01c95a1..b87b4631 100644
--- a/spec/lib/onebox/engine/viddler_spec.rb
+++ b/spec/lib/onebox/engine/viddler_spec.rb
@@ -2,31 +2,35 @@
 
 describe Onebox::Engine::ViddlerOnebox do
   let(:link) { "http://viddler.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("viddler.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("Viddler Demo")
-  end
+  it_behaves_like "engines"
 
-  it "returns video image" do
-    expect(html).to include("thumbnail_2_7164f749_v2.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("Get familiar with your Viddler account.")
-  end
+    it "returns video title" do
+      expect(html).to include("Viddler Demo")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("http://www.viddler.com/player/7164f749")
-  end
+    it "returns video image" do
+      expect(html).to include("thumbnail_2_7164f749_v2.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("Get familiar with your Viddler account.")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("http://www.viddler.com/player/7164f749")
+    end
 
-  it "returns video embed code"
+    it "returns video embed code"
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/vimeo_spec.rb b/spec/lib/onebox/engine/vimeo_spec.rb
index 7edd6ad1..20b34c5c 100644
--- a/spec/lib/onebox/engine/vimeo_spec.rb
+++ b/spec/lib/onebox/engine/vimeo_spec.rb
@@ -2,29 +2,33 @@
 
 describe Onebox::Engine::VimeoOnebox do
   let(:link) { "http://vimeo.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("vimeo.response"))
   end
 
-  it "returns video title" do
-    expect(html).to include("108 years of Herman Miller in 108 seconds")
-  end
+  it_behaves_like "engines"
 
-  it "returns video photo" do
-    expect(html).to include("443673159_1280.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns video description" do
-    expect(html).to include("To mark the launch of a new website for Hermann Miller furniture")
-  end
+    it "returns video title" do
+      expect(html).to include("108 years of Herman Miller in 108 seconds")
+    end
 
-  it "returns video URL" do
-    expect(html).to include("http://vimeo.com/moogaloop.swf?clip_id=70437049")
-  end
+    it "returns video photo" do
+      expect(html).to include("443673159_1280.jpg")
+    end
+
+    it "returns video description" do
+      expect(html).to include("To mark the launch of a new website for Hermann Miller furniture")
+    end
+
+    it "returns video URL" do
+      expect(html).to include("http://vimeo.com/moogaloop.swf?clip_id=70437049")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine/wikipedia_spec.rb b/spec/lib/onebox/engine/wikipedia_spec.rb
index 7eee1616..cd29df3c 100644
--- a/spec/lib/onebox/engine/wikipedia_spec.rb
+++ b/spec/lib/onebox/engine/wikipedia_spec.rb
@@ -1,13 +1,15 @@
 require "spec_helper"
 
 describe Onebox::Engine::WikipediaOnebox do
-  describe "to_html" do
-    let(:link) { "http://example.com" }
-    let(:html) { described_class.new(link).to_html }
+  let(:link) { "http://wikipedia.com" }
+  before do
+    fake(link, response("wikipedia.response"))
+  end
 
-    before do
-      fake(link, response("wikipedia.response"))
-    end
+  it_behaves_like "engines"
+
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
     it "returns the product URL" do
       expect(html).to include(link)
diff --git a/spec/lib/onebox/engine/yfrog_spec.rb b/spec/lib/onebox/engine/yfrog_spec.rb
index 6a815953..3bbf8153 100644
--- a/spec/lib/onebox/engine/yfrog_spec.rb
+++ b/spec/lib/onebox/engine/yfrog_spec.rb
@@ -2,25 +2,29 @@
 
 describe Onebox::Engine::YfrogOnebox do
   let(:link) { "http://yfrog.com" }
-  let(:html) { described_class.new(link).to_html }
-
   before do
     fake(link, response("yfrog.response"))
   end
 
-  it "returns photo title" do
-    expect(html).to include("Celebrating @questlove Cook4Quest w/WyattCenac")
-  end
+  it_behaves_like "engines"
 
-  it "returns photo" do
-    expect(html).to include("jjdob.jpg")
-  end
+  describe "#to_html" do
+    let(:html) { described_class.new(link).to_html }
 
-  it "returns photo description" do
-    expect(html).to include("Click on the photo to comment, share or view other great photos")
-  end
+    it "returns photo title" do
+      expect(html).to include("Celebrating @questlove Cook4Quest w/WyattCenac")
+    end
+
+    it "returns photo" do
+      expect(html).to include("jjdob.jpg")
+    end
+
+    it "returns photo description" do
+      expect(html).to include("Click on the photo to comment, share or view other great photos")
+    end
 
-  it "returns URL" do
-    expect(html).to include(link)
+    it "returns URL" do
+      expect(html).to include(link)
+    end
   end
 end
diff --git a/spec/lib/onebox/engine_spec.rb b/spec/lib/onebox/engine_spec.rb
index 55a52330..2866ea19 100644
--- a/spec/lib/onebox/engine_spec.rb
+++ b/spec/lib/onebox/engine_spec.rb
@@ -2,6 +2,10 @@
 
 class Onebox::Engine::Foo
   include Onebox::Engine
+
+  def record
+    "foo"
+  end
 end
 
 describe Onebox::Engine do
@@ -9,6 +13,20 @@ class Onebox::Engine::Foo
     it "returns formatted html"
   end
 
+  describe "#record" do
+    it "returns cache value for given url if cache exists" do
+      cache = { "http://example.com" => "foo" }
+      result = Onebox::Engine::Foo.new("http://example.com", cache).send(:record)
+      expect(result).to eq("foo")
+    end
+
+    it "stores cache value for given url if cache key doesn't exist" do
+      cache = { "http://example.com1" => "foo" }
+      result = Onebox::Engine::Foo.new("http://example.com").send(:record)
+      expect(result).to eq("foo")
+    end
+  end
+
   describe ".===" do
     it "returns true if argument matches the matcher" do
       class Onebox::Engine::Foo
diff --git a/spec/lib/onebox/preview_spec.rb b/spec/lib/onebox/preview_spec.rb
index d952325d..415a850c 100644
--- a/spec/lib/onebox/preview_spec.rb
+++ b/spec/lib/onebox/preview_spec.rb
@@ -5,7 +5,7 @@
     it "returns some html if given a valid url" do
       fake("http://www.example.com", response("example.response"))
       preview = described_class.new("http://www.example.com")
-      expect(preview.to_s).to include("<h1>Example Domain 1</h1>")
+      expect(preview.to_s).to include("Example Domain 1")
     end
     it "returns an empty string if the resource is not found"
     it "returns an empty string if the resource fails to load"
diff --git a/spec/lib/onebox_spec.rb b/spec/lib/onebox_spec.rb
index e69de29b..ad4feb6c 100644
--- a/spec/lib/onebox_spec.rb
+++ b/spec/lib/onebox_spec.rb
@@ -0,0 +1,28 @@
+require "spec_helper"
+
+describe Onebox do
+  describe ".preview" do
+    it "creates a cache that responds as expected" do
+      url = "http://www.example.com"
+      preview = Onebox.preview(url)
+      cache = preview.cache
+      expect(cache).to respond_to(:key?, :store, :fetch)
+    end
+
+    it "stores the value in cache if it doesn't exist" do
+      url = "http://www.example.com"
+      preview = Onebox.preview(url)
+      preview.to_s
+      cache = preview.cache
+      expect(cache.key?(url)).to eq(true)
+    end
+
+    it "replaces the cache if the cache is expired" do
+      url = "http://www.example.com"
+      preview = Onebox.preview(url, cache: Moneta.new(:Memory, expires: 100000, serializer: :json))
+      cache = preview.cache
+      expect(cache.fetch(url)).to be(nil)
+    end
+
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 9390fd01..623b49a2 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -13,4 +13,14 @@
 
 RSpec.configure do |config|
   config.include HTMLSpecHelper
-end
\ No newline at end of file
+end
+
+shared_examples_for "engines" do
+  it "should behave like an engine" do
+    expect(described_class.private_instance_methods).to include(:data, :record, :raw)
+  end
+
+  it "should have implemented a data method" do
+    expect { described_class.new(link).send(:data) }.not_to raise_error
+  end
+end