Card Games [ http://www.pagat.com/ ]
Features the largest collection of card game rules on the Internet, with information about hundreds of card and tile games from all parts of the world.

iCardGames.com [ http://www.icardgames.com/ ]
Offers over 50 different free online card games including Solitaire, Hearts, Euchre, Spades, Freecell, Spider Solitaire, Blackjack, Poker, Video Poker and many more fun easy to learn free online card games.