Anyone else ever heard of freerice.com? It quizzes you in vocab (you can switch to many other subjects as well) and for every question you get right it donates 10 grains of rice to the UN World Food Program. I'd never heard of it before today but its fairly entertaining, for a good cause, and it does help you learn a little bit. So far I've done vocab, spanish, and geography. Got up to level 35 in vocab so I can't even imagine what level 60 is like.
