Intro
Poker Stars has been offering real money poker since late 2001.  It has produced WSOP champs, Chris Moneymaker and Greg Raymer.  Since late 2006, Poker Stars has been the world's largest online poker room.  

Game Selection
Poker Stars offers a wide range of poker games at low and high stakes.  You can choose from cash games, multi-table sit and goes, single table sit and goes, heads up sit and goes, scheduled multi-table tournaments, and satellites to live, major poker events such as the WSOP, WPT,  and Aussie Millions.  

Some of the Games offered are: pot limit, no limit, and limit Texas Hold 'em; pot limit and limit Omaha (and Omaha H/L); limit seven card stud (and seven card stud H/L); limit Razz; HORSE tournaments and cash games; and HOSE limit cash games.    

Software
Poker Stars' software is the most stable in the poker world.  Their poker lobby is easy to navigate, with tournament buttons, stakes buttons, and game buttons all at an easy to find bar at the top of the window.  Players can also set a custom filter to navigate to the game they are looking for easily.  Players are also given the option to upload an image or avatar and can edit it one time if needed.  

BONUS
Poker Stars offers players a 100% bonus up to $600.  They also offer a reload bonus from time to time unlike other sites.  Players can earn the bonus after earning 10 times the dollar amount (up to $600) in frequent player points with the code: POKER-LOBBY.COM.