ajax jquery loading

ajax loading screen

Twitter 101

Twitter integration basic

http://search.twitter.com/search.json?q=@XXX&page=X

@XXX : search keyword
X : Current Page

shadow on IE 101

shadow on IE

jquery 101

jquery 101

jquery sliding effects

Light media player

Super light weight jquery player !!!

Upload control - Jquery + ASP.NET

clean and simple upload control for asp.net + jquery, this is not using form posting and using json to post data over to asp.net

this is using form posting which is not very useful, another framework which did form posting 

Many more for form posting
Link 1
Link 2

loading User control

Reference

Someone builds a project on this

Similar concept but this is lazy loading
The problem with this is that, you won't be able to leverage on the server control that you have.

This is a big problem if you are looking at async postback, because you cannot have full control on the control name generated.