@Mathieu
I agree with you about its passivity. That is one of the things I find dull about it; in this regard it is like a CV or resume just sitting out there. Of course with Facebook or MySpace, I find it hard to have something professional there with so many games and plain silliness out there.

@Jen
Why do you think the social network boom is at an end? What, if anything, do you think will take their places?