when one of us becomes a 'fan' of a site, or a 'friend' of someone's, any 'friend' of theirs may get suggestions to also become friends or fans, based on the fact that a friend of yours is a friend or fan.
got it?
for example, simon & i have 30 common friends. say simon becomes a 'fan' of white sands dive shop. i (and the other 29 friends) may get a random suggestion that i may want to become a fan too, since my friend simon is. then, say i become friends with elbert - he may get a suggestion to add simon as a friend, and simon one to add elbert.
see?
depending on your settings, you see what your friends post, and get a notification showing all responses to that post. if you want, you can set fb to alert u by email that someone responded or posted photos of you.
when i post pics, my friends & their friends can see them.
understand? LOL!
what i like best is the IM function - i can (and do) have a quick hi or an hour long existential discussion with my friends around the country and in belize. in real time. THAT'S cool.