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Free Rice - all in one timewaster, vocab builder and feeder of the poor

As you take advantage of your four hour work week (ok, that's your New Year's resolution) you've got to love efficiency. Free Rice is a site that lets you build your English vocabulary, and while doing so, it donates grains of rice to the United Nations to help stop world hunger. The donation of rice is made possible by the unobtrusive ads that line the bottom of the screen. We like to think of...