Have you visited patterns & practices recently? If not, take a tour to http://msdn.microsoft.com/en-us/library/ms998572.aspx and note the new, the refined and the more understandable categories, including Solution Development Fundamentals, Client Development, Server Development, and Services Development.
Do you need guidance on your current of forthcoming projects? If maybe, probably or yes are part of the answer, make sure to peruse the guidance. Also not the planned and forthcoming guidance section, which is promising a few exciting additions to the family of guidance content, i.e. WCF Security Guidance.