A.R.
I belong to this group: http://alternaparent.meetup.com/86/
and love it. All of the parents have been really kind so far and Michelle, the organizer, plans great events: We recently had a "Messy Party" where the kids fingerpainted with pudding, etc. We go to museums, parks, etc. too.
The fee is $12, but you can join free and try it for 30 days if you want.
-Amanda