The publicly-editable Ajax Frameworks Page got a nice kick along in the past few days, presumably due to a recent link from Ajaxian. If this list is anything to go by, the most common language is pure-Javascript, and Java is, as you might have guessed, highest on the server-side, followed by .Net and PHP. Sections for Python and Perl were opened up during this time. Thanks for your contributions!
1 Pure Javascript: Application Frameworks
- 1.1 Isomorphic (Commercial RIA Toolkit)
- 1.2 Bindows (Since 2003)
- 1.3 BackBase (from 2003)
- 1.4 DOJO (Under development; from September, 2004)
- 1.5 Open Rico (Under development; from May, 2005; based on earlier proprietary framework)
- 1.6 qooxdoo (Under development; from May, 2005)
- 1.7 Tibet (Under development; from June, 2005)
- 1.8 AJFORM (Since June 2005)
- 1.9 ThyAPI (Under development; Since end of 2004)
2 Pure Javascript: Infrastructural Frameworks
- 2.1 AjaxCaller (Alpha; from May 2005)
- 2.2 Flash JavaScript Integration Kit ()
- 2.3 Google AJAXSLT (Released June 2005)
- 2.4 HTMLHttpRequest (Beta; from 2005)
- 2.5 Interactive Website Framework (from May 2005)
- 2.6 LibXMLHttpRequest (Released; June 2003)
- 2.7 MAJAX (Released; August 2005)
- 2.8 RSLite (x)
- 2.9 Sack (In development; from May 2005)
- 2.10 Sarissa (Released; from February, 2003)
- 2.11 XHConn (Released; from April, 2005)
3 Server-Side: Multi-Language
- 3.1 Cross-Platform Asynchronous INterface Toolkit (May 2005)
- 3.2 SAJAX (Workable but not 1.0; from ?March 2005)
- 3.3 Javascipt Object Notation (JSON) and JSON-RPC
- 3.4 Javascript Remote Scripting (JSRS) (from 2000)
- 3.5 Bitkraft for ASP.NET
4 Server-Side: Python
- 4.1 CrackAJAX
5 Server-Side: Java
- 5.1 WebORB for Java (from August 2005)
- 5.2 Echo 2 (from March 2005)
- 5.3 WidgetServer (2004)
- 5.4 Direct Web Remoting (DWR) (2005)
- 5.5 SWATO (2005)
- 5.6 AJAX JSP Tag Library
- 5.7 AJAX Java Server Faces Framework
- 5.8 ThinkCAP JX: RAD Environment for AJAX, J2EE, and Open Source (Commercial Framework)
- 5.9 Struts-Layout
6 Server-Side: Lisp
- 6.1 CL-Ajax
7 Server-Side: .NET
- 7.1 MonoRail (from May 2005)
- 7.2 WebORB for .NET (from August 2005)
- 7.3 Ajax.NET (from March 2005)
- 7.4 ComfortASP.NET (from August2005)
- 7.5 AjaxAspects (from August 2005)
8 Server-Side: Perl
- 8.1 CGI::Ajax - Export perl methods to javascript for AJAX
9 Server-Side: PHP
- 9.1 AjaxAC (From April, 2005)
- 9.2 JPSpan
- 9.3 XAJAX
- 9.4 PEAR::HTML::Ajax
- 9.5 CPAINT
10 Server-Side: Ruby
- 10.1 Ruby On Rails