Pokerstars has become the largest poker room online since it started in 2001. US players are accepted. They host some really big tournaments and offer satellites to all the major live poker events. They also run the World Championship of Online Poker (WCOOP) which is the largest online poker series on the internet. Not only do they offer good variety of games but they also support a team of professionals who include WSOP Main Event World Champion, Joe Hachem, and Daniel Negreanu among others.
Full Tilt Poker
Full Tilt Poker was created in 2004 since then they have recruited a great number of professional player like Allen Cunningham, Chris "Jesus" Ferguson, Gus Hanson, Phil Ivey, Howard Lederer and Erik Seidel. Full Tilt Poker accepts player from the US. Also they have some great bonuses and poker promotions, including $8 million in guaranteed prize pools every week!
Cake Poker
Cake Poker offer an excellent gold card loyalty rewards program. The gold cards are randomly distributed over players so the more you play, the bigger is your chance of getting one. You can use the cards for entry into some very good promotions and tournaments, for cash prizes and more. Cake Poker also offers a great variety of tournaments with some exciting prizes and opportunities.
Software