Realtime Form Validation Using AJAX
Nice article from Sun about how to do real-time validation of data that can't be validated on the client side & has to be checked on the server (e.g. username already exists). Check it out.
Amit Shirodkar's blog. This blog has 2 parts: 1) My own thoughts on a variety of subjects. 2) A collection of links, stories, articles, etc. that I found on the web, liked and wanted to share with others.