There's a new BizTalk newsletter/website on the web: BizTalkHotRod (found through Richard Seroter), created by some Microsoft Technology Specialist and other members of the community. The first issue can be found here.

I find the layout and overall design of the website and newsletter to be pretty awful (my opinion), but suffering through that is well worth it to get to the actual content. Lots of great stuff on the first issue guys, so keep'em coming!

BizTalk