Prior to Facebook, people had to use detective work and old fashioned stalker technology to find out what their exes and goofball best friend from third grade was up. Those were hard times. By 2010, Facebook has inundated the earth so thoroughly that you’ll never have to rely on a shady private eye to stalk your friends and enemies again. And here are a few fact about the business behind this incredible website.

Chances are good you have a Facebook profile. Chances are even better that, if you do have an account, you check it at least once a day. You might be a professional Farmviller or the President of 100 Facebook groups, but do you really know Facebook and what you’ve gotten yourself into? It’s time for a little Facebook re-education.