A Brief History of Playing Cards
   History and rules for multiple card games.
   http://www.usplayingcard.com/gamerules/briefhistory.html

About Card Games
   Games, online tournaments and clubs, card collecting tips, download of game software, new games, and magazines.
   http://boardgames.about.com/cs/cards/

Bella Online Card Games
   Information on playing War, Puzzle Solitaire and I Doubt It. Also includes gameplay, including Word Search and Card Games Hangman.
   http://www.bellaonline.com/site/cardgames

Blackjack Related Games
   Comprehensive guide to card games similar to blackjack.
   http://www.blackjacktactics.com/guide/

Cards and Dominoes
   Features rules for cards, dominoes and dice games.
   http://www.cardsanddominoes.com/

Casino Card Games
   Contains history and instructions for various games.
   http://www.casinocard-game.com/

Egyptian Ratscrew
   Includes a short introduction, equipment, basic play, and other rules.
   http://www.waste.org/~oxymoron/cards/ratscrew.html

House of Cards
   Information on multiple games including solitaire, poker, bridge, hearts, canasta, rummy, and casino gambling.
   http://thehouseofcards.com/

New Card Games
   Rules for Nusicle, Trib, Tunge, Novelty Strange and various standard deck games.
   http://www.grimwold.org.uk/games/cards/

Parlett's Historic Card Games
   Describes obscure card games from the past.
   http://www.davidparlett.co.uk/histocs/

Playing Cards
   Multiple FAQs about cards and card games, plus a worldwide list of playing card societies.
   http://www.cs.man.ac.uk/~daf/i-p-c-s.org/faq/

Playing Cards, Card Games, and American Culture
   Presents a historical overview of card games specific to the Greenbelt, Maryland area and also throughout the United States. Also includes popular games from the 1940's and general rules of play.
   http://www.otal.umd.edu/~vg/amst205.F97/vj14/cards/introduction.html

Real Beer Card Games
   Card games associated with beer drinking. Includes Down the River, Float the Bobber, Philly Style and Brain Damage
   http://www.realbeer.com/fun/games/card.php

Rules of Card Games
   A collection of dozens of card game rules arranged alphabetically, categorically, and geographically.
   http://www.pagat.com/

Rules to Period Games
   A directory offering rules to games from multiple historical periods. Includes rules and descriptions of Tarot games, As Nas and Karnoeffel.
   http://jducoeur.org/game-hist/game-rules.html

Shaw's Card Game Rules
   Rules for lesser known games. Includes Sask Rummy, Push and 500.
   http://www.members.shaw.ca/bvwhit/cards.html

The Rules of the Game
   A listing of rules and variations to several card games.
   http://www.webterrace.com/cards/home.htm

Wikipedia - Card Games
   Contains rules and equipment, as well as a list of card games.
   http://en.wikipedia.org/wiki/Card_game