I own a myspace account, as in, i have one, because i was pretty much forced too. It sucks, and myspace does too, but its a nice tool to spread music, as a band.
Facebook. Well. I don't care about people i went to school with, i have all the friends that i care about on either Myspace, MSN, Last.FM or this honky piece of norweigan crap called "Nettby". The rest can go to hell, and facebook with it
And so shall those who randomly add me on Myspace, if i have denied any of you's there, just send me a message and tell me that you're from here, instead of just adding me, if i dont recognize you, you will be denied and blocked
"privacy" wins
Facebook is too new for me, too big and lame, much like the Microsoft - Fisher-Price collaboration called "Windows Vista"