So you thought online social networking didn’t have a business model outside of the sheer genius of ‘pay another 10 bucks to network with people who’s email adresses you already have’? Oh, yee of little faith. It turns out online networking isn’t about Six Degrees of Kevin Bacon, or other such esoteric party games. It’s about classified advertising. Still not convinced? Imagine the Guardian buying Friendster.com. Well, that at least