I started off to make a short list of the ASP.NET MVC sites I use often but it quickly turned into a top 10 list. That is until I realized I only visit 9 ASP.NET MVC related sites on a regular basis. So, here is my Top 9..That is until someone suggests another site worthy of my reading.

ASP.NET

http://www.asp.net/mvc/default.aspx?wwwaspnetrdirset=1

Blogs

http://www.hanselman.com/blog/

http://weblogs.asp.net/scottgu/

http://haacked.com/

http://weblogs.asp.net/stephenwalther/

http://bradwilson.typepad.com/

http://blog.wekeroad.com/

CodePlex

ASP.NET on CodePlex

The ASP.NET MVC releases are posted under the ASP.NET umbrella project.
http://www.codeplex.com/aspnet

http://www.codeplex.com/MVCContrib/Wiki/View.aspx?title=Documentation&referringTitle=Home