FreeRice

You've probably heard about FreeRice already. If you haven't, FreeRice is a non-profit website that takes the form of a quiz, except that for every correct answer, they donate 10 grains of rice.

It's a win-win situation: You learn, they feed.

The rice you donate makes a huge difference to the person who receives it. According to the United Nations, about 25,000 people die each day from hunger or hunger-related causes, most of them children. Though 10 grains of rice may seem like a small amount, it is important to remember that while you are playing, so are thousands of other people at the same time. It is everyone together that makes the difference. Thanks to you, FreeRice has generated enough rice to feed millions of people since it started in October 2007.

Link, Via: Neatorama