One thing that's really outraged me is that here a few months ago, like Julio pointed out, MySpace COMPLETELY changed, going from MySpace to "My[__]", or whatever it's supposed to be called... and it's JUST like Facebook in that it's slow, hard to navigate, not user-friendly, etc.
Everyone always talks about being able to "connect" with everybody on Facebook... well, I've been able to do that just fine without it... if I want to connect with people, I can PM them, e-mail them, strike up a chat on Y!M, and I can see my family in person anytime I want, so I really don't need Facebook.
Now, although I've always said that Twitter is completely useless, as its purpose is essentially a feature on BOTH MySpace AND Facebook, I have been considering getting a Twitter account: I used to use MySpace for both blogging and status updates... well, MySpace has been effed up beyond comprehension, so I've got Blogger for blogging now, so I basically just use MySpace for status updates now, but the slowness, and the difficult navigation really isn't worth the hassle anymore.