J.S.
Dear L.,
Check out Las Madres, (http://www.lasmadres.org/) there a play groups all over the bay area, it only cost $35 a year, and you can have a two month trial period just to check it out. so far I've had great luck with the group of women and babies for my girls. They divide the areas up in to what year your child was born so she can "play" with kids her our age. Try it out, I hope its a good fit for you!