Check out this set of nifty Windows Server 2008 R2 training tidbits for developers:
New R2 Learning Center
Explore this significant Windows Server release via a self-paced training course of videos and hands-on-labs with a focus on performance, web, management, and other server solution scenarios. Learn about developing applications for “many-core” scale, enable efficient “trigger-started” services, explore new Windows PowerShell features, create integrated solutions with the File Classification Infrastructure, and build Web Platform extensions.
New R2 Developer Training Kit – Learning Center Edition
Download and share the Developer Training Kit. The kit includes self-paced hands-on-lab exercises with corresponding video resources on the new Channel9 Learning Center. Topics include: