Kris Horrocks, Mike Woods, Mark Berman and Steve Sloan of the BizTalk product group at Microsoft will be contributing regularly to a new blog that you can find at http://blogs.msdn.com/BizTalk_Server_Team_Blog/.
They've got a great “beginner training roadmap” post that will be very helpful for people new to BizTalk Server 2006.
OK guys... let's see some great content on a REGULAR basis!