Mystic Island: Internet Gaming Park
Online card playing site for Spades, Euchre, Hearts Cribbage and Pinochle. Automated tournament system.
mysticisland.net

Spielkartenwelt
Supplies customers with playing cards (bridge, poker, skat...), cartomancy and tarot, books and software, equipment and more.
spielkartenwelt.de

Newt's Playing Card Superstore
Card games, playing cards and card games accessories.
newtscards.com

Cartamundi
Manufacturer of playing cards and cards for games.
cartamundi.com

TreeCardGames
Developers of several card games, including SolSuite Solitaire, 123 Free Solitaire, MahJong Suite Solitaire, Sudoku Up and more.
treecardgames.com

Kammelna - Balloot Game
Offers users a facility to play online balloot card game.
kammelna.com

Card Game Heaven
Online guide for a selection of multiplayer and single player card games. Provides information about each game, with examples and graphics to help users learn how to play the games.
cardgameheaven.com

GameRules.org
Offers detailed explanations of the rules to play the popular card games, board games, dice games and other games, as well as rules for the different variations of these games. Each game rule article is broken up into logical sections.
gamerules.org

Cats at Cards
An informative and entertaining website for learning the popular cards games, with articles and rules and information. Content includes basic shuffling methods, dealing, common card game procedures, the deck, common irregularities, card glossary and more.
catsatcards.com

Card Magic
An online resource for free card magic.
card-magic.blogspot.com