Great website of the week: Get smarter and feed the world

I'm totally hooked now. I've been visiting FreeRice.com and can't get enough of those vocabulary words and getting smarter... So I can use these big words and score mad chics.
Anyway, you get a word right, they donate 10 grains of rice to the United Nation World Food program. So you get smart, and some little kid a world away gets to eat. It's a win - win situation.
If you get a word wrong, they give you an easier word, get 3 words right in a row, you get bumped up to the next vocab level. I've been up to 43. Try and beat me.
Get to work:
FreeRice.com