Adding xqjs, CUP, and Congo to the resources section.

documentation/index.html.erb

@@ -940,6 +940,20 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
         &mdash; a quick-and-dirty literate-programming-style documentation generator
         for CoffeeScript. Used to produce the annotated source.
       </li>
+      <li>
+        <b>satyr</b>'s <a href="http://satyr.github.com/cup/">CUP</a>
+        &mdash; The CoffeeScript Unofficial Playpen, where the changes to
+        the latest <tt>master</tt> can be experimented with.
+      </li>
+      <li>
+        <b>satyr</b>'s <a href="https://addons.mozilla.org/en-US/firefox/addon/159546/">xqjs</a>
+        &mdash; A Firefox add-on that provides a simple JavaScript console
+        with the ability to execute CoffeeScripts within the current window.
+      </li>
+      <li>
+        <b>naturalethic</b>'s <a href="http://github.com/naturalethic/Congo">Congo</a>
+        &mdash; An asynchronous MongoDB ORM, for use with Node.js and CoffeeScript.
+      </li>
     </ul>
 
     <h2>