Facebook. Suprised myself, but its genuinley useful. Granted, most that use is to mack on to birds you know even when at work, but still.
On Bebo too but only because for some reason all the Irish seem to use that and not Facebook, but never use it anymore.
They only gay when they do what a lot of spaccas do and just add anyone they remotely know, rather than just using it for people you have anything to do with.
Ive had a single person (from another forum) try and add me 9 times, with me clicking ignore every time. I dont know him at all, just know who he was. Thats sad as FUCK, and goes against any usefulness of em.
Facebook is more a private thing so is fine and un-gay, Bebo and especially Myspaz are more a "ooh look at me" online pretending to be popular thing, and therefore gay as fuck.