FreeRice.Org
Do you have a moment to spare and want to help feed the world's hungry? Play this online free vocabulary game and for each word you define correctly FreeRice will donate 20 grains of rice to the United Nations World Food Program.
How does this site work? Advertisers pay for each ad that appears during the game and in turn help pay for the rice that you donate by correctly defining words. It's a fun game that can help you build a better vocabulary and help the world's largest food aid agency. In only 5 minutes I donated over 300 grains of rice.
