I don't have a lot of time to read blogs (heck these day's I barely have any time to write for my own), but Scott Gu's blogs is one that you might want to put on the top of your blog reading list.
This entry is a great one to spin up on .NET 3.5 and related technologies. It covers a ton of stuff ranging from Silverlight, to Visual Studio 2008 (now in beta - slated to be release in March), LINQ and new language features. I suggest that you start with the links for the new language features:
New Language Features: