Web controls

Comparison webtoolkit
https://wiki.jasig.org/display/UP3/Javascript+Toolkit+Comparison
43 Essential Toolkit for Javascript
http://www.uxbooth.com/blog/essential-controls-for-web-applications/

JQuery

Ext.Net Framework
   Description = Huge set of components written in javascript use jquery.
   Url = http://ext.net

Infragistics
   Url = http://samples.infragistics.com/jquery/grid/batching-updates
Prototype
   Url = http://prototype.conio.net/
Component One
   Url = http://www.componentone.com/SuperProducts/StudioASPNET/Demos/
Writing own JQuery plugin
   Url = http://docs.jquery.com/Plugins/Authoring

Other
Some project on codeproject.com
http://www.codeproject.com/Articles/237411/Html-5-Controls-for-ASP-Net-MVC

Samples
Silk -  HTML5, CSS3 and ECMAScript 5, jQuery, Internet Explorer 9 and ASP.NET MVC3
   Url = http://silk.codeplex.com/

Articles on blogs
About Ext.Net Framework, JQuery and Asp.Net
   Url = http://www.simple-talk.com/dotnet/asp.net/ext-framework,-jquery-and-asp.net/