Tom Sawyer 2.0

What do you do when you are Google and have a zillion images on the web but no decent way for people to find them? You make a game of it by telling everyone how much fun it is to identify key words for images, and you pair people up randomly to lend some semblance of quality to the end result.

You'll be randomly paired with a partner who's online and using the feature. Over a 90-second period, you and your partner will be shown the same set of images and asked to provide as many labels as possible to describe each image you see. When your label matches your partner's label, you'll earn some points and move on to the next image until time runs out.

Maybe one day someone will write a book like The Professor and the Madman regaling the fascinating story of the person who racked up the most points labelling images for Google. They could call it The Capitalist and the Bored Man.