diff --git a/jquery-subtopic.js b/jquery-subtopic.js
index 99423e6..85fb712 100644
--- a/jquery-subtopic.js
+++ b/jquery-subtopic.js
@@ -15,7 +15,7 @@
  */
 (function($) {
     "use strict";
-    var cache = {};
+    var cache = {},
     /**
      *    Events.publish
      *    e.g.: Events.publish("/Article/added", [article], this);
@@ -26,7 +26,7 @@
      *    @param args    {Array}
      *    @param scope {Object} Optional
      */
-    var publish = function(topic, args, scope) {
+    publish = function(topic, args, scope) {
         var topics = topic.split('/');
         while (topics[0]) {
             if (cache[topic]) {
@@ -40,7 +40,7 @@
             topics.pop();
             topic = topics.join('/');
         }
-    };
+    },
     /**
      *    Events.subscribe
      *    e.g.: Events.subscribe("/Article/added", Articles.validate)
@@ -51,13 +51,13 @@
      *    @param callback {Function}
      *    @return Event handler {Array}
      */
-    var subscribe = function(topic, callback) {
+    subscribe = function(topic, callback) {
         if (!cache[topic]) {
             cache[topic] = [];
         }
         cache[topic].push(callback);
         return [topic, callback];
-    };
+    },
     /**
      *    Events.unsubscribe
      *    e.g.: var handle = Events.subscribe("/Article/added", Articles.validate);
@@ -69,7 +69,7 @@
      *    @param completly {Boolean}
      *    @return {type description }
      */
-    var unsubscribe = function(handle, completly) {
+    unsubscribe = function(handle, completly) {
         var t = handle[0],
             i = cache[t].length - 1;
 
diff --git a/subtopic.js b/subtopic.js
new file mode 100644
index 0000000..c1ecd9d
--- /dev/null
+++ b/subtopic.js
@@ -0,0 +1,94 @@
+/**
+ * Pub/Sub for Loosely Coupled logic.
+ *
+ * Based on Hiroshi Kuwabara's jQuery version of Peter Higgins' port 
+ * from Dojo to JQuery.
+ *
+ * Hiroshi Kuwabara's JQuery version
+ * https://github.com/kuwabarahiroshi/bloody-jquery-plugins/blob/master/pubsub.js
+ *
+ * Peter Higgins' port from Dojo to jQuery
+ * https://github.com/phiggins42/bloody-jquery-plugins/blob/master/pubsub.js
+ *
+ * Perfomance enhanced version based on Luís Couto
+ * https://github.com/phiggins42/bloody-jquery-plugins/blob/55e41df9bf08f42378bb08b93efcb28555b61aeb/pubsub.js
+ */
+var subtopic = (function() {
+    "use strict";
+    var cache = {},
+    /**
+     *    Events.publish
+     *    e.g.: Events.publish("/Article/added", [article], this);
+     *
+     *    @class Events
+     *    @method publish
+     *    @param topic {String}
+     *    @param args    {Array}
+     *    @param scope {Object} Optional
+     */
+    publish = function(topic, args, scope) {
+        var topics = topic.split('/');
+        while (topics[0]) {
+            if (cache[topic]) {
+                var thisTopic = cache[topic],
+                    i = thisTopic.length - 1;
+
+                for (i; i >= 0; i -= 1) {
+                    thisTopic[i].apply(scope || this, args || []);
+                }
+            }
+            topics.pop();
+            topic = topics.join('/');
+        }
+    },
+    /**
+     *    Events.subscribe
+     *    e.g.: Events.subscribe("/Article/added", Articles.validate)
+     *
+     *    @class Events
+     *    @method subscribe
+     *    @param topic {String}
+     *    @param callback {Function}
+     *    @return Event handler {Array}
+     */
+    subscribe = function(topic, callback) {
+        if (!cache[topic]) {
+            cache[topic] = [];
+        }
+        cache[topic].push(callback);
+        return [topic, callback];
+    },
+    /**
+     *    Events.unsubscribe
+     *    e.g.: var handle = Events.subscribe("/Article/added", Articles.validate);
+     *        Events.unsubscribe(handle);
+     *
+     *    @class Events
+     *    @method unsubscribe
+     *    @param handle {Array}
+     *    @param completly {Boolean}
+     *    @return {type description }
+     */
+    unsubscribe = function(handle, completly) {
+        var t = handle[0],
+            i = cache[t].length - 1;
+
+        if (cache[t]) {
+            for (i; i >= 0; i -= 1) {
+                if (cache[t][i] === handle[1]) {
+                    cache[t].splice(cache[t][i], 1);
+                    if (completly) {
+                        delete cache[t];
+                    }
+                }
+            }
+        }
+    };
+	
+	return {
+		publish: publish,
+		subscribe: subscribe,
+		unsubscribe: unsubscribe
+	};
+
+}());
\ No newline at end of file
diff --git a/underscore-subtopic.js b/underscore-subtopic.js
new file mode 100644
index 0000000..92d4562
--- /dev/null
+++ b/underscore-subtopic.js
@@ -0,0 +1,92 @@
+/**
+ * Underscore Pub/Sub plugin for Loosely Coupled logic.
+ *
+ * Based on Hiroshi Kuwabara's jQuery version of Peter Higgins' port 
+ * from Dojo to JQuery.
+ *
+ * Hiroshi Kuwabara's JQuery version
+ * https://github.com/kuwabarahiroshi/bloody-jquery-plugins/blob/master/pubsub.js
+ *
+ * Peter Higgins' port from Dojo to jQuery
+ * https://github.com/phiggins42/bloody-jquery-plugins/blob/master/pubsub.js
+ *
+ * Perfomance enhanced version based on Luís Couto
+ * https://github.com/phiggins42/bloody-jquery-plugins/blob/55e41df9bf08f42378bb08b93efcb28555b61aeb/pubsub.js
+ */
+(function(_) {
+    "use strict";
+    var cache = {},
+    /**
+     *    Events.publish
+     *    e.g.: Events.publish("/Article/added", [article], this);
+     *
+     *    @class Events
+     *    @method publish
+     *    @param topic {String}
+     *    @param args    {Array}
+     *    @param scope {Object} Optional
+     */
+    publish = function(topic, args, scope) {
+        var topics = topic.split('/');
+        while (topics[0]) {
+            if (cache[topic]) {
+                var thisTopic = cache[topic],
+                    i = thisTopic.length - 1;
+
+                for (i; i >= 0; i -= 1) {
+                    thisTopic[i].apply(scope || this, args || []);
+                }
+            }
+            topics.pop();
+            topic = topics.join('/');
+        }
+    },
+    /**
+     *    Events.subscribe
+     *    e.g.: Events.subscribe("/Article/added", Articles.validate)
+     *
+     *    @class Events
+     *    @method subscribe
+     *    @param topic {String}
+     *    @param callback {Function}
+     *    @return Event handler {Array}
+     */
+    subscribe = function(topic, callback) {
+        if (!cache[topic]) {
+            cache[topic] = [];
+        }
+        cache[topic].push(callback);
+        return [topic, callback];
+    },
+    /**
+     *    Events.unsubscribe
+     *    e.g.: var handle = Events.subscribe("/Article/added", Articles.validate);
+     *        Events.unsubscribe(handle);
+     *
+     *    @class Events
+     *    @method unsubscribe
+     *    @param handle {Array}
+     *    @param completly {Boolean}
+     *    @return {type description }
+     */
+    unsubscribe = function(handle, completly) {
+        var t = handle[0],
+            i = cache[t].length - 1;
+
+        if (cache[t]) {
+            for (i; i >= 0; i -= 1) {
+                if (cache[t][i] === handle[1]) {
+                    cache[t].splice(cache[t][i], 1);
+                    if (completly) {
+                        delete cache[t];
+                    }
+                }
+            }
+        }
+    };
+
+    _.publish = publish;
+    _.subscribe = subscribe;
+    _.unsubscribe = unsubscribe;
+
+}(underscore));
\ No newline at end of file