J.C.
I would suggest getting very involved in your local church. I am a SAHM and I homeschool. My boys get tons of social interaction at church. We attend service several days a week, we also volunteer in most of the activities. My church has a carwash every Sat, also lots of opportunities to clean, watch kids for others, and help with events. My boys have developed great friendships with like-minded believers. I couldn't ask for anything more. :-)