I've tried lots of social networks over the years. The big ones today, as well as older ones like MySpace and LiveJournal, and some others whose names I forget. The only ones I've stuck to are Digg, Reddit, and now Hubski. I expect Slashdot would have attracted me too, if I were old enough for it. Thing is, I've never really used those three for social networking. I made plenty of comments here and there, but I was never paying attention to who I was talking to. Still don't. That doesn't strike me a very social. Best I can think of that fits that is the occasional debate I might get involved in, but that only created a relationship that lasted for the duration of that debate, and then was gone from my mind. As for Facebook, I don't like the company, for all the usual reasons. And beyond that, it's not useful or fun for me. Everything that Facebook offers me I can have more fun doing IRL. Everything I can't do IRL I can do with email or some IM service or another. And as for Twitter, I have nothing to tweet about, and no one's tweets interest me. The one thing that I have found Twitter useful for is getting up to the minute accounts of some event going on somewhere, but that only happens rarely and I don't need an account for that.