I mostly end up spamming game junk to all my friends, but since at least half of my friends are why I'm playing most of those facebook games, they can deal.

I only signed up to facebook because someone close to me invited me, and only got a twitter whn I was running a radio station, to -make- announcements and to let folks poke me if for some reason the game the station was out of wasn't actually up.
On the other hand, it was drama, twitter and facebook that indirectly -ruined- my station too.