S.T.
I recently became a SAHM and have been doing a lot of research to find different things to do w/my child. I found a web-site called meetup.com and all you have to do is put in your zip code and it provides the different meetups available in your area. Look for mom groups, SAHM, Tampa moms, etc. I found a nice group and have started going to different things in the area.
Also in Brandon there is the family support center. They offer several classes and all is free.
Hope this helps