2010
Microsoft, jQuery, and Templating
If you don’t want to write JavaScript, then we recommend that you use the server controls in the Ajax Control Toolkit.
If, however, you are interested in creating client-side interactivity without server controls then we recommend that you use jQuery.
Google Chart Tools - Google Code
2008
2007
JSONSharp - C# meets JSON
2006
ScriptAculoUs.Net
Client script after clientside validation
Newtonsoft Json.NET
Prototype Window Class
SitePoint - Fresh Thinking for Web Developers and Designers
2005
RIALTO - Rich Internet Application Toolkit










