We have just launched U.S. website for our American visitors: http://annabet.com/us/
All the odds are shown in American format, the sports and leagues are filtered to better suit your interest. Wizard of Odds shows arbitrage in US odds and dollars and so does Cover Bet Calculator and many of our other tools.
You can still access the English / Rest of the World site at http://annabet.com/en/ if you wish. Contact us with your feedback.