And Youtube appears to be having some issues today, at least on my comp, so here ya go instead. :)
This is AWESOME It's basically a vocabulary game, where you get to play, and see how good your vocab is, expand it, and each time you get a right answer you donate 10 grains of rice for free thru the United Nations to help end world hunger. According to the site 37,056,070 grains were donated just yesterday.
Pimp it! How well did you do? What vocab level were you at by the time you donated 300 grains of rice? I was at 31. Not so great... but hey, now I know what nub means. I've never used the word nub in place of gist. There ya go!