I'm not a great fan of of social networking. Yes, I know I'm a dinosaur! I suppose I would rather interact face-to-face with someone in the real world that bother with the false instant "friendships" that seem to be the norm in Bebo and Facebook. Having observed umpteen students (who are absolutely hooked on Bebo)I've concluded that social networking dynamics can often invoke the schoolyard with gossip, bullying and popularity contests an insidious part of the equation. Trying to collect as many friends as possible as a means to prove your ‘coolness’, means that many virtual relationships are never anything more than fickle.
Of the sites I explored though, I preferred Facebook - it seems to be a more grown up version of Bebo. At least most people converse in a more highly evolved version of English than the text language that proliferates on Bebo!