all the online bookies are overseas as are virtually all the bettors. They are basically either rabidly pro-Obama or just clueless about the flaws in the polls and the turnout models. You can’t get an account on InTrade unless you bank from an offshore account.
Romney was a +225 on Sportsbook. That means if you bet 100 dollars, you get paid 225. Return of 125 if Romney wins. better than doubling your money. Obama is a -285. If you put 100 on Obama, your return is about 36 dollars if Obama wins.