Keepers Of The Court: Foursquare Superusers

Foursquare is a company with all of four employees. Yes, they just hired their fourth, we've learned (hello, Nathan Folkman, formerly of Betaworks, where he worked on Bit.ly). And yes, that's a fitting number. You might think that a company that recently closed some funding would ramp up hiring a little faster, but the truth is that they don't have to. Why? Because their users are already doing quite a bit of work to expand and improve the service.