Here's what Facebook doesn't get. I have 580 friends on Facebook. These are all people I've met in real life at least once. I care, honestly, about maybe 50 of them. And of those I care about, I want to know what's going on in maybe 10 of those 50 friends' lives. Ask my how much I care about people who aren't friends with me on Facebook. About as much as I care about anybody on the internet on any site.