» Which sites are the biggest? Most legitimate?

The largest poker playing site in the world is PokerStars.  PokerStars has at least twice the volume and number of players as Full Tilt Poker, the next largest site. Most major sites operating today have been proven legitimate by the continuing play of their thousands and thousands of members. To learn more about all the poker sites currently in operation, including rankings, descriptions and for information on how you can sign up, please click here.