This is a nice free tool that Microsoft released to help out ASP.net Web Developers. It's a WYSIWYG development tool that kind of looks like Visual InterDev/Visual Basic.
From Microsoft's site:
http://www.asp.net/webmatrix/default.aspx?tabindex=4&tabid=46
An article from "The Register"
http://www.theregister.co.uk/content/4/25898.html