This place got some awesome tutorials and examples.
http://www.noupe.com/css/css-layouts-40-tutorials-tips-demos-and-best-practices.html
Look at the Form samples and Ajax/JavaScript Samples.
Pretty good Web2.0 style creations and tutorials.
http://www.noupe.com/css/css-styled-lists-20-demos-tutorials-and-best-of.html
http://www.noupe.com/css/using-css-to-do-anything-50-creative-examples-and-tutorials.html
This is a cool software I found on my daily travell. Linqpad is a EXE file and you dont have to install anything. It will connect to specified database and run Linq/SQL query(s). Also importantly it has some good video tutorials and some inbuilt samples.
Video Tutorial : http://oreilly.com/pub/e/909
Main Web Site : http://www.linqpad.net/
http://www.junnark.com/Articles/Build-a-Web-Chat-Application-Using-ASP-Net-LINQ-and-AJAX-CS.aspx