I'm with The Gawd on this one - what is it you got involved in?
There's a couple of active atheist Meet-Up groups that I'm aware of in my area, but they're very "do stuff" oriented. Sometimes it's an activist kind of thing, but mostly it's just social gatherings, like exhibits, movies, and of course, meeting at a bar for drinks and such. In fact, I believe the "Drinking Skeptically" Meet Up has chapters across the country? What you describe sounds like... a support group, like AA.
Tell me more please, I'm really curious about this now.