http://www.freerice.com/index.php
From their "About" Page:
FreeRice is a non-profit website run by the United Nations World Food Program. Our partner is the Berkman Center for Internet & Society at Harvard University.
FreeRice has two goals:
1.Provide education to everyone for free.
2.Help end world hunger by providing rice to hungry people for free.
This is made possible by the generosity of the sponsors who advertise on this site
Whether you are CEO of a large corporation or a street child in a poor country, improving your education can improve your life. It is a great investment in yourself.
Perhaps even greater is the investment your donated rice makes in hungry human beings, enabling them to function and be productive. Somewhere in the world, a person is eating rice that you helped provide. Thank you.
So basically, the site offers quizzes in the following subjects: art, chemistry, English, geography, language learning(Spanish, German, Italian, French), and math.
The format is multiple-choice, and: "For each answer you get right, we donate 10 grains of rice to the United Nations World Food Program."
18,902,500 grains of rice were donated yesterday.
So, basically, you improve your education/knowledge in any of various subjects(GOOD DEEDS) while giving to the hungry(GOOD DEEDS). Sounds pretty good to me...
