If you have a Facebook account, and, like me, can’t leave (family is there) and you want to make sure that Facebook is not sharing your information, go here and follow the instructions:
http://www.reclaimprivacy.org/
They have a fancy Javascript that will check your Facebook settings for you.
I’m pretty tech savy. I mostly have Facebook blocked and don’t share information. However, they’re sneaky. There were still two areas that I was sharing.
The script claims to change the settings — it didn’t for me. It did, however, provide me with links so that I could change the settings myself.