OK, pretend you’re Google now. How do you go about getting unsuspecting users to do your bidding and label images for the Google Image Search? Make an addictive game out of it. This game sucked me in for longer than it should have. The basic idea is you’re paired up with some other unsuspecting Google victim and shown an image, and have to keep typing labels for that image until you and your partner match. You have fun, and Google gets free human labor assigning search terms. It’s really quite brilliant.