Feed the Hungry
I have just visited this site that will donate grains of rice to feed the hungry just by playing a simple vocabulary game. I managed to get my vocabulary to level 40 and donated 700 grains of rice. Doesn't sound like much when it takes about 3,500 grains to feed one person, but at this point the total is 3, 256,135,000 which is about enough to feed 930 people. And the more people that play, the more people get fed. Pretty simple really. Thanks to How About Orange for the link.