I agree that the social relevancy stuff is clearly not very good yet. But 1. I expect it to get better; and 2. Google faces a chicken-and-egg problem of not bei

I agree that the social relevancy stuff is clearly not very good yet. But 1. I expect it to get better; and 2. Google faces a chicken-and-egg problem of not being able to extract meaningful signal from an unused social network, and a social network that no one will use, especially if it has no meaningful impact on search. Bootstrapping the social product by funneling your actually successful product's users into it seems like a fairly obvious and reasonable approach to me. (I'd rather not get into an antitrust argument here, since that's been done to death, and I find it pretty uninteresting to begin with.)