A new version of the ASP. NET Ajax library has been released at codeplex:
* The ASP. net Ajax library provided des the Ajax Control Toolkit. you can continue to use the Ajax Control Toolkit in ASP. net web forms applications by dragging-and-dropping controls from the Visual Studio toolbox. the new Ajax Control Toolkit also can be used in ASP. net MVC and even pure HTML applications.
* The ASP. Net Ajax library has a new codeduplex project located at http://Ajax.CodePlex.com
* The ASP. NET Ajax library has a new documentation/tutorial/sample code website located at http://www.ASP.net/ajaxLibrary
* The ASP. NET Ajax library is being hosted on the Microsoft Ajax content delivery network. Learn more about the Microsoft Ajax CDN at http://www.ASP.net/ajaxLibrary/CDN.ashx
* Microsoft has contributed the ASP. NET Ajax Library to the codeplex Foundation. Learn more about the codeplex Foundation by visiting http://CodePlex.org
The ASP. Net Ajax library beta release enables you want to build database-driven Web applications that run entirely in the web browser. The Library provides the following features for developers:
- Powerful developer libraries and tooling support
- Performance-build high performance websites
- Interoperability-use it with any server platform and alongside jquery
- Extensible-build on top of the library and inherit from controls like dataview
From: http://forums.asp.net/t/1494489.aspx