Play to donate sites allow users to play games.
In exchange the company running the site agrees to make some sort of donation.
freerice.com Increase your vocabulary and freerice will donate rice to the hungry for every word you get right. puzzledonate.com Put the puzzle pieces together and complete the puzzle and puzzledonate will donate. www.charityandpoker.com Play poker and donate. www.helpthirst.com Play a memorization game and helpthirst will donate clean water. www.freepoverty.com Play a geography game and freepoverty will donate clean water. www.charitii.com Play word puzzles and choose from 4 causes to donate to. www.savetheworldwithmusic.com Play a music trivia game and savetheworldwithmusic.com will donate clean water.
