IndieGoGo is like Kiva but for creative projects. (If you're not familiar with Kiva, it allows people to make micro-loans [like $25] directly to other people in poorer countries/circumstances to fund relatively cheap projects that can make a major difference in their lives and communities.) Boing-Boing article. The different incentives offered are interesting--makes simple Tuckerization look like an amateur's game. Even if I never use this service, I like it for marketing/crowdfunding ideas.