The fine folks that support our customers have started a new blog:  Developer Support Team Foundation Server.  With posts by Trevor Hancock, Jim Saunders, and others on topics ranging from issues with TFS to the BPA (Best Practices Analyzer), you'll want to subscribe to this blog.  They also plan to post monthly summaries of publicly released hotfixes (patches).

Here's a sample of some of their recent posts.

Check it out!