title: List of rich web application technologies
body: <p>I am trying to get myself acquainted with the world of rich web application. There are some comparison tables of available technologies on the Wikipedia, but I still find it unclear what are the options for rich application development.</p>
  
  <p>Could you please verify and complete the information I gathered below? 
  What are the key pros and cons of each option?
  Which is the best choice for big and very rich web application?</p>
  
  <p><strong>Option 1: ASP.NET/ASP.NET MVC</strong><br>
  Vendor: Microsoft<br>
  Environment: Visual Studio<br>
  Language: C#<br>
  Output: HTML+JavaScript+AJAX<br>
  Example: www.stackoverflow.com<br></p>
  
  <p><strong>Option 2: Silverlight</strong><br>
  Vendor: Microsoft<br>
  Environment: Visual Studio<br>
  Language: C#<br>
  Output: .NET executable?<br>
  Example: ?<br></p>
  
  <p><strong>Option 3: Google Web Toolkit</strong><br>
  Vendor: Google<br>
  Environment: Eclipse<br>
  Language: Java<br>
  Output: HTML+JavaScript+AJAX<br>
  Example: <a href="http://www.projectkaiser.com:8080/pk/" rel="nofollow noreferrer">http://www.projectkaiser.com:8080/pk/</a><br></p>
  
  <p><strong>Option 4: Flex</strong><br>
  Vendor: Adobe<br>
  Environment: ?<br>
  Language: ?<br>
  Output: Flash (.swf file)<br>
  Example: <a href="http://listen.grooveshark.com/" rel="nofollow noreferrer">http://listen.grooveshark.com/</a><br></p>
  
  <p><strong>Option 5: Adobe AIR</strong><br>
  Vendor: Adobe<br>
  Environment: ?<br>
  Language: ?<br>
  Output: AIR<br>
  Example: <a href="http://www.colabolo.com/en/download.html" rel="nofollow noreferrer">http://www.colabolo.com/en/download.html</a><br></p>
  
  <p><strong>Option 5: Ruby on Rails</strong><br>
  Vendor: Rails Core Team<br>
  Envirnoment: ?<br>
  Language: Ruby<br>
  Output: HTML+JavaScript+AJAX?<br>
  Example: ?<br></p>
  
  <p><strong>Option 6: Java Applets</strong><br>
  Vendor: Sun<br>
  Environment: Eclipse<br>
  Language: Java<br>
  Output: Java Applet<br></p>
  
  <p><strong>Option 7: OpenLeszlo</strong><br>
  Vendor: ?<br>
  Environment: ?<br>
  Language: ?<br>
  Output: ?<br>
  Example: ?<br></p>
  
  <p><strong>Option 8: Vexi</strong><br>
  Vendor: Vexi core team<br>
  Environment: Eclipse<br>
  Language: XML + JavaScript<br>
  Output: Java<br>
  Example: Demo on <a href="http://vexi.sourceforge.net/" rel="nofollow noreferrer">http://vexi.sourceforge.net/</a><br></p>
  
  <p><strong>Option 9: Django</strong><br>
  Vendor: Django core team<br>
  Environment: ?<br>
  Language: Python<br>
  Output: HTML + JavaScript + AJAX<br>
  Example: ?<br></p>
  
  <p><strong>Option 10: XUL</strong><br>
  ???</p>