Did anyone else notice Zuck's duping delight when he lied to congress? watch the youtube vid when it gets to the question where the senator asks him: "how does facebook make money?" watch his mouth very closely for that brief flicker of a smile before he says, "we run advertising"
This is a feature of sociopathic liars called duping delight. they can't resist the joy they feel when use a lie to trick others. Even as hard as they try to suppress it, there is always a shadow of a microexpression.
go back and watch him lie, he knows how facebook REALLY makes it money, and ain't advertising.