(VOTING IS NOW CLOSED)
HuffPost's Game Changers celebrates 100 innovators, visionaries, and leaders in 10 categories who are harnessing the power of new media to reshape their fields and change the world. With your help, we've picked 10 people who are changing the game in philanthropy. We honor and salute them.
Now it's up to you to pick the Ultimate Philanthropy Game Changer. Click through the slideshow below, get the lowdown on why we chose them, then VOTE. We'll reveal the Ultimate 10 in November.