We've released the Architecture Resource Center (ARC) as a central point for information regarding architecture best practices and prescriptive guidance, etc. The bit I love about this site is the content has been broken up into links to white papers, web casts, etc, based on what point in the learning curve you're at. So rather than having just one big blob of information, this site has been carved up into "Where do I want to go tomorrow?", "Where was I yesterday?", and "Where the hell am I now!?"
Also, what do you get the MCP who has it all!? How about a Certified Architect cred! We're in the process of putting together a certification stream that deals with architecture, from both a bytes and boxes point of view.