FB'S PRIVACY SETTINGS FOR DUMMIES

I FOUND THIS HELPFUL.

AN EXCERPT:

8. Let your friends know you have boundaries — in person.

Many of us have woken up on a Sunday morning to find that an overzealous friend has posted dozens of photos from that wild party we barely remembered — the good, the bad and the hideous. Chances are, they didn't do this to embarrass you, though if they did you have bigger problems. Rather, they probably don't know that you don't want these photos posted. Sure, tweak your photo privacy settings on Facebook. But if someone starts snapping pictures of you at a party, ask them to check with you before posting it anywhere.

YAHOO