Lol....I am in the same boat as you. I don't have a lot of social situations...in a way I tend to avoid them because I don't like myself so therefore I dont feel comfortable in them.

Anyho, here are some suggestions:

Doggy Obedience Class
Doggy Agility Class
A certian kind of group- such as a mosaic group, a sewing group, a photography group etc. and they could be classes too!
Church-I don't know if you are religious or anything, but that is also a good way to mee people
I don't know if you are shy or not, but if you live in town you could walk around, and i know this is going to sound really lame but you could start a conversation with people you meet like comment on how beautiful their flowers are, etc. I dunno, probably a dumb idea.

Anyho, I hope those help, but if they don't, well Sorry! I hope you get to meet some more people. And maybe you and your husband could have some people over for dinner or something? Just like another couple from his work or your work. Just a thought.