FreeRice.

Do something fun. Guess the synonym of the words on the screen, and climb to harder and harder levels. 40 of them overall.

Do something good. for every correct answer, the sponsor of the game will donate ten grains of rice through the United Nations. It’s not much, but every little helps.

my level right now: 32 – I’ve donated 500 grains so far. At 20mg x grains, it’s less than a hundred grams though.

thanks to Versus Itaca for the link.