This one has received the imprimatur of Boing Boing, so it might very well reach its funding goal. I've been keeping an eye on it for a week or so and finally donated.
Tu Publishing is a going to be a multicultural publisher of SF, fantasy, mystery, and historical fiction for children and young adults. That's an awesome goal, and the founder, Stacy Whitman, has worked as an editor for Wizards of the Coast and other publishers. She knows what she's doing. She's also pleasantly low-key about the whole multicultural thing. It's not a militant view; she just wants to publish books with characters who aren't all white, with settings that aren't all America, with viewpoints that aren't all the same. I think this is awesome.
I just donated $15--you can donate any amount you like, using Amazon's pay service (just like you were ordering books through Amazon). They have gifts available if you donate over a certain amount. Moreover, if they don't reach their goal of $10,000 by the end of this week, your card/account won't be charged for the donation. Currently they're 50% toward their goal, and I know they were only 40% toward their goal yesterday because I dropped by to see. Hopefully they'll make it.