PokerStrategy is the worlds biggest online poker community. They grew that big by giving their members poker strategy training and free money to play poker with.
The whole system is based on points earned from playing poker. The more points you earn, the more advanced strategy articles are made available to you.
Carbon Poker is one of the few remaining online poker sites that accepts players from the United States of America.
Not all poker rooms on the Merge Network do take Americans, but Carbon Poker has gone out of their way to make US players feel welcome, and they are always trying out new payment processing solutions for their players.