So, I've taken to reading the Exchange 2010 SP1 online documentation, line by line, to get ready for my MCM training next month. It's rather slow going, but I expect to hit a rhythm and power on through it.
Once you have an account setup on the Microsoft Advanced Certification portal, you can post messages on the community page. Not a lot of activity there, but I offered to start a studying group via Lync online meetings. It's too bad there isn't a DL or anything for tentative students to communicate with each other. I have no idea who else will be attending with me in three weeks.