Hi! I cleaned up your code for you!

lib/mwhich/amazon.rb

@@ -6,20 +6,20 @@ def initialize(options={})
         @aws_access_key_id = ENV['AWS_ACCESS_KEY_ID']
         @aws_secret_access_key = ENV['AWS_SECRET_ACCESS_KEY']
       end
-      
+
       def search(title)
         results = request(title)
-        
+
         titles = []
         results.css("Item").each do |result|
           titles << "#{result.css('ProductGroup').inner_html}: #{result.css('Title').inner_html}"
         end
-        
+
         titles
       end
-      
+
       protected
-      
+
         def request(title)
           params = {
             "Operation" => "ItemSearch",
@@ -32,11 +32,11 @@ def request(title)
           sorted_params = params.sort_by{|x,y| x}.map{|x,y| "#{x}=#{CGI::escape(y)}"}.join('&')
           signature = sign("GET\nwebservices.amazon.com\n/onca/xml\n#{sorted_params}").strip
           url = "#{@endpoint_url}?#{sorted_params}&Signature=#{CGI::escape(signature)}"
-          
+
           response = Net::HTTP.get_response(URI.parse(url))
           Nokogiri::XML(response.body)
         end
-        
+
         def sign(string)
           hmac = HMAC::SHA256.new(@aws_secret_access_key)
           hmac.update(string)

lib/mwhich/client.rb

@@ -1,6 +1,6 @@
 module MWhich
   class Client
-    
+
     VALID_SERVICES = [:amazon,:hulu,:itunes,:netflix]
     SERVICE_MAP = {
       :amazon => MWhich::Services::Amazon,
@@ -9,24 +9,24 @@ class Client
       :netflix => MWhich::Services::Netflix
     }
     IGNORE_MEDIA = [:clips, :trailers]
-    
+
     attr_accessor :services, :ignore
-    
+
     # Arguments (all are optional):
     # - :services        - One or more of :amazon, :netflix, :hulu, or :itunes. Default is :all
     def initialize(options={})
       self.services = options[:services] || VALID_SERVICES
       self.ignore = options[:ignore] ? IGNORE_MEDIA & options[:ignore] : IGNORE_MEDIA
     end
-    
+
     # Search for a movie/tv show by title
     def search(title)
       results = {}
       self.services.each do |service|
         s = SERVICE_MAP[service].new(:ignore => ignore)
         results[service] = s.search(title)
       end
-      
+
       results
     end
   end

lib/mwhich/hulu.rb

@@ -9,10 +9,10 @@ def initialize(options={})
           @ignore_media << 'clip' if options[:ignore].include?:clips
         end
       end
-      
+
       def search(title)
         results = request(title)
-        
+
         titles = []
         results.xpath("//video").each do |result|
           next if @ignore_media.include?result.css('video-type').inner_html
@@ -22,15 +22,15 @@ def search(title)
           end
           titles << "#{result.css('video-type').inner_html}: #{result.css('title').inner_html}#{append}"
         end
-        
+
         titles
       end
-      
+
       protected
-      
+
         def request(title)
           url = "#{@endpoint_url}/search?dp_identifier=hulu&query=#{URI::escape(title)}&items_per_page=10&page=1"
-          
+
           response = Net::HTTP.get_response(URI.parse(url))
           Nokogiri::XML(response.body)
         end

lib/mwhich/itunes.rb

@@ -4,20 +4,20 @@ class ITunes
       def initialize(options={})
         @endpoint = "http://ax.phobos.apple.com.edgesuite.net/WebObjects/MZStoreServices.woa/wa/wsSearch"
       end
-      
+
       def search(title)
         results = request(title)
-        
+
         titles = []
         results.each do |result|
           titles << "#{result['kind']}: #{result['trackName']} ($#{result['trackPrice']})"
         end
-        
+
         titles
       end
-      
+
       protected
-        
+
         def request(title)
           # We'll do searches across both TV and movies and merge the results
           results = []
@@ -27,10 +27,10 @@ def request(title)
             data = Yajl::Parser.parse(response.body)
             results |= data['results']
           end
-          
+
           results
         end
-      
+
     end
   end
 end

lib/mwhich/netflix.rb

@@ -1,33 +1,33 @@
 module MWhich
   module Services
     class Netflix
-      
+
       def initialize(options={})
         @endpoint = "http://odata.netflix.com/v1/Catalog/"
         @format = "json"
       end
-      
+
       def search(title)
         results = request(title)
-        
+
         titles = []
         results['d']['results'].each do |result|
           titles << "#{result['Type']}: #{result['Name']}#{result['Instant']['Available'] ? ' - Watch now!' : ''}"
         end
-        
+
         titles
       end
-      
+
       protected
-        
+
         def request(title)
           filter = "Name eq '#{title}'"
           url = "#{@endpoint}Titles?$filter=#{URI::escape(filter)}&$format=#{@format}"
-          
+
           response = Net::HTTP.get_response(URI.parse(url))
           Yajl::Parser.parse(response.body)
         end
-        
+
     end
   end
 end