We look at some internet fundraising services and compare their offers:

http://www.kickstarter.com/
New, you have to be US based.

http://www.fundable.com/

http://www.indiegogo.com/about/howitworks

http://www.artistshare.com/home/getting_started.aspx

http://www.indiemaverick.net/
Almost 2 years and they only have 119 projects of which only 1 got fully funded.

http://www.chipin.com/
(Widgets possible)