Okay, I know I'm not supposed to advertise other sites and I'm sorry I'm breaking a rule, but this is for a good cause, so I hope you can let this one slide. Free Rice is a site in which you take a quiz, and for every answer you get right, you donate 10 grains of rice to starving people, and ten answers right is about 1 bowl of rice donated. The site is www.freerice.com.