I only started playing OMGPOP's Draw Something a couple days ago. I already can't stop playing. It's irresistible—I'm playing games with damn near everyone I know on Facebook; people I never play games with, not even Words With Friends.
So it shouldn't come as a surprise that the game is raking in money. Particularly not as OMGPOP was just quickly acquired by social game titan Zynga. All the same, it's impressive just how much money the game has been making, and how many people are playing it. According to Gamesindustry.biz, Draw Something has been downloaded over 37 million times and has over 20 million active users. There are currently 3,000 drawings created every second, over a billion each week.