Check This Out: KOBE – Web 2.0 Service Development Resource Kit
Kobe is a “getting started” resource kit on planning, architecting, and implementing Web 2.0 applications and services using the Microsoft Platform.
I am sure all of you who are interested in this area would be really benefitted with it.
Check this out: http://msdn.microsoft.com/en-us/architecture/bb194897.aspx