US Poker Sites 2011 

As of April 15th 2011, 4 major poker sites have decided not to accept players from the United States due to charges by the US Department of Justice against their executives for money laundering and bank fraud.  One of the payment processors that these companies were using to process credit cards has allegedly made transactions that violated the federal wire act and that the executives allegedly were involved. The poker sites affected are PokerStars, Full Tilt Poker, UB (Ultimate Bet), and Absolute Poker.  Players at these sites will get their money back according to spokesmen from the US DOJ and the poker sites themselves. PokerStars has already begun paying US players.

It is not illegal to play poker online for real money in the United States, with the exception of Washington State and Louisiana. Washington DC has passed a law that makes it legal to play poker online in the District of Columbia. So its legal for the President to play online poker. All of the sites listed on US Poker Sites 2011 are "open for business to real money US players" and not affected by developments affecting other sites.