Full Tilt Poker is one of few online poker rooms that accepts US players. It was started in 2004 by Chris Ferguson and other pros and continues to grow in daily traffic.
It's considered one of the best places to find a pro to play with, Phil Ivey is often found at the .05/.10 tables. At any time you can watch hundreds of thousands of dollars being won and lost.
Full Tilt offers the standard Texas Hold 'Em, Omaha, and Stud poker but also has some of the popular variations like HORSE and HOSE.
Graphically Full Tilt gives you a selection of avatars to choose from, and different backgrounds for the tables.
Party Poker is one of the largest poker rooms on the Internet. At one time it was the largest but do to the US legislation banning online gambling it has dropped down in traffic, behind PokerStars but still maintains it's fair share of traffic.
Party Poker has a large variety of games as well as regular freerolls and promotions to encourage play money players to make a deposit.
Because of the amount of advertising there are a lot of new players on the site, giving strong players a lot of opportunities to make money.
Finally there is the largest poker room on the net: PokerStars. One of the only remaining sites that still takes American players, they recently hit a milestone of 150,000 players online simultaneously.
PokerStars hosts a regular Sunday Million dollar tournament, and with deposits starting at $10, it's an easy site to get a real money account on.
With the ability to post your own images and to change themes for the tables, PokerStars is becoming the room of choice for online players.
No matter which room you pick, remember to have fun and play safe.