I have started for some time now an Exchange working group on the Microsoft\Culminis community site Aggreg8. It now has a decent amount of traffic and conversation with lots of questions posted that many in the Exchange community may find helpful. You may also be able to share your experience with others. Please stop by and take a look. I can also give out some invitations if they are needed. Leave a comment.
Update: Okay, so while traffic spiked I had been remiss in looking at post dates - nothing since 11/2006! Let's get the posting back up!