To be honest, it's not facebook itself but the people. I have a few old college friends who currently lives in Australia, Korea and Canada and it's so easy to say hey hows it going. I just don't like it when people stalk and judge you in your photos and what you talk about in your status'. Also hate it when you drift apart from once very close friends and they're getting on great and doesn't make any effort to see how you're doing. Facebook unfortunately highlights that for me.