[Shutup and Deal, I'm Losin']

Facebook is one of those things in life that can be very beneficial if used properly, but very harmful and dangerous if used improperly.

Facebook lets you chat back and forth with friends that live far away, and it can be a great way to meet new people. But when you go posting too much info on there, and you have your profile set so that everyone can view it (I have mine set so that only friends can see anything), you're asking for trouble. Just don't give to much information about yourself and you won't have anything to worry about.
You also don't want to post when you're going on vacation, because then potential thieves could see it and attempt to break in while you're away.