VSTS Guidance on CodePlex
CodePlex has a great new project focusing on Team System community education. The project, that can be found at http://www.codeplex.com/VSTSGuidance, contains abundance of helpful information.
The project contains video based tutorials, how-tos and an extensive links index for: articles, blogs, downloads, FAQs, forums, training, web casts and much more.
I really enjoyed the project and hope that it will keep growing and expend its knowledge base, which is now focusing a lot on Source Control issues.