I have a 15 year old daughter that had created a Myspace account. My wife stumbled across it one time on the net.

She didn't know that we knew about it until we found stuff out there we didn't like and had to confront her. It wasn't that she lied about really important stuff. Just little things, but the big one was her age.

She put on there that she was 17 and sure enough, had posts from random net people along the order of "have you had sex yet?" and "do you have a web cam?" Stuff like that.

Anyway--we made her shut it down but still search out there because she has a computer at her moms house (exwife) and can pretty much do whatever she wants.