Wyoming Cowboy
- Rules, strategy and a FAQ about the game.
- http://www.wyomingcowboy.org/

BVS Development Corporation
- Develops and distributes solitaire and video poker card games.
- http://www.bvsgames.com/

Legend Games
- Publishes Age of Heroes. Includes game information and educational benefits.
- http://www.legendgames.net

M.E.K. Games
- Producing a series of medieval fantasy card games beginning with Armory.
- http://www.mekgames.com/

Ninety-Nine
- Exact bidding game where players lay aside three cards from their hand representing their secret bid, and play the remaining nine cards to tricks.
- http://www.pagat.com/exact/99.html

The Official Rules for Buh
- A simple but addictive betting game for two to eight players. Introduction, rules, history and variants.
- http://www.alcyone.com/max/projects/cards/buh.html

U.S. Games Systems, Inc.
- A wide variety of tarot cards and card games.
- http://www.usgamesinc.com/

Tredici
- The rules to an invented game in which players try to collect all the cards of one suit before the others.
- http://www.theworldofstuff.com/tredici/

Invented Card Games
- Rules for a number of recently invented card games.
- http://www.pagat.com/invented/

Joker High
- Rules for the game invented by Michael Lawson.
- http://www.jokerhigh.net/

BitShifters
- Several invented poker game variations.
- http://bitshifters.com/poker.html