My mom has been all over me to get on FB. I told her I think it is creepy. I had to reclaim a FB page my son made at a friend's house, but only used the once and then forgot his password. A couple "friends" got the password and used it to impersonate him and make rude and sexual comments to nearly every girl in town, except for those which would get back to him/us. I managed to reset the password and reset it, and am "holding" the page until/if DS ever wants to get on FB. At the moment, he has no desire, but it's given me a chance to investigate FB and how it works.
At around the same time, DH decided he should make a FB. He is studying Media Technology in school and it will be rather expected of him to have a page and will look odd to not find anything when he goes job-hunting. I told him to please not post any pictures of the kids, and he's fine with that. We discovered that you can share video/pics selectively, so we investigated being able to post something occasionally just for family, but noticed that DH could see videos of people he was not friends with if people he was friends with commented. So we experimentally posted a nonsense video to just my sis and asked if she commented on it, if she could share it with others. And, yes, she could. So what is the point of only sharing with selective people? Crazy!
And back to my mom, she called me a few weeks back all upset because she knew her family was lying to her! Her niece was in town, but lied to my mom about it, and she found out because she posted that she had been on FB. Also, my mom has two sisters, her twin and an older sister. The older sister lives in the same town as my mom, and her twin lives 3 hours away. The two of them have a very close relationship, and have excluded my mom, and this becomes all the more obvious because of FB. I wish my mom would just get off FB!