I'm having a social network clear out.
I quit App.net a couple of weeks back and last week I said fairwell to Facebook.
I hardly used it anyway, but the real clincher with Facebook was that it was just creeping me out way too much. Which is probably why I hardly used it.
I mainly kept it to keep in touch with a few friends who pretty much only communicate using Facebook, but I've come to alternative arrangements, so its single remaining use for me has gone.
I don't think I'll be missing it all that much. In fact, it's already a small weight off my shoulders not even having to think about it any more, other than to write this :)
Note to developers (of which I am one): If you insist on me signing up using Facebook, I'll just delete the app.