Other fundraising sites similar to Kickstarter?

Two come to my mind, Kiva and Donors choose.
Kiva is generally used by people in 3rd world countries looking to start up a business, and need a few hundred bucks to get it going, but there’s a variety of needs on there. Kiva is a microfinancing site, rather than straight donations. There’s a possibility that you get your money back. But not a guarantee.
Donors Choose is an education donation site, and I think all of the “projects” on it are in the U.S. but I could be wrong.

My wife and I have looked, but Kickstarter seems to be unique. If there are other sites doing the same thing then they are below the radar (not popular).

As @Sarcasm points out, there are fundraising sites that are at least moderately popular and successful, but aside from Kickstarter, they all seem to be specialized like the two he mentions.

This might be a helpful article (http://www.good.is/post/eight-charities-combining-giving-and-the-internet/)...you tell me.