There is also http://thefoundation.io/, free forums carry far too much noise and arm chair experts imo. I've also heard good things about micropreneur academy and looks like startupplays.com/ might be trying to get something going.
I have been a member in the past, and recently re-subscribed. It's a good resource.
I would prefer a free forum but haven't had the energy to start one myself. If you are interested in a "lifestyle business" or "micropreneurial" forum, shoot me an email and I'll see about putting together one.