[Baba_Chaghaloo]

I think because Facebook does something very smart: they keep it jumpin'. They change things on an almost weekly basis, which everyone complains about, but it keeps them coming back even though the overall experience became sour for them years ago.

They can't keep that up forever though, people will move on. But I disagree with the idea of another site in the same mold (Friendster, MySpace, Facebook) that will move in and conveniently replace it. I think people are starting to realize those things are just a pain in the ass and will move to semi-anonymous networks like Twitter or Reddit for more stress-free entertainment.