Douglas Schoen has this opinion piece, which argues that the surprising support in polls for Herman Cain for the Republican presidential nomination is really a manifestation of public anger with the two major parties. Cain, of course, has never been elected to public office (although he once ran in a Republican primary for U.S. Senate from Georgia). Schoen is a supporter of Americans Elect, and a professional pollster.
Also, see this Huffington Post description of Americans Elect, authored by Elliot Ackerman, CEO of Americans Elect. Thanks to Bill Van Allen for both links.