Basically, if you have an idea of a project you want to do (usually an artistic project), then you post it on this website and ask for people to fund it through pledges (can be large or small). The 'kicker' is, unless you raise all the money you need through pledges, you don't get money at all. This encourages people to pledge a little more liberally, and makes sure that anything you pledge money to gets accomplished. I love the concept, perhaps most especially because in my future imagination of the world everyone will work together to do everything, and it will all be run through the internet. Plus, everyone wins--you either get your awesome idea funded or get to spend that cigarette money on allowing someone to create something awesome!