You may never have heard of browser-based MMO Domain Heroes before, but that's OK. There's tons of browser-based games you've never heard of. But we mention it because this one's doing good deeds.
At the moment, 5% of the proceeds from in-game purchases are going to charity. Some of the money is going to Child's Play (echoing a similar move made by Everquest in January), and some of it's going to "Women in Gaming International", a group championing the "inclusion and advancement of women in the game industry".