You know the old joke where the mentor says "pay me 100 dollars and I'll show you how to make a million dollars"? I laughed a little because reading the post a

You know the old joke where the mentor says "pay me 100 dollars and I'll show you how to make a million dollars"? I laughed a little because reading the post about facebook's user growth immediately nags me to sign up for facebook. Nothing against facebook; the irony just got a chuckle out of me.