Mostly, this is what I heard from Jeff Jarvis from a talk about this new book What Would Google Do?. (I'm sure I don't have 'em exactly right;these are paraphrased; please take as rhetorical, not literally.)
David Weinberger: There's an inverse relationship between control and trust.
Jeff: You've won when your customer community controls your enterprise.
Jeff: The new privacy involves Mutually Assured Humiliation
The last refers to the openness among the kids to disclose behavior that oldsters like myself would not.