- The 45's Card Game
- Covers resources on rules and variations of the game. Includes information on its history, tournament schedule and related links.
- GrandPrix Card Tournaments
- Official page of The World Series of The World Series of Hearts, Spades, Pinochle, Euchre, and Bid Whist. Contains details on game schedules and winning strategies.
- Hay’s Rule Book
- Covers general rules of card and trick-taking games. Details on card ranking, bidding types and guidelines in dealing infractions.
- Pagat: Exact Bidding Group
- Covers the playing concepts of Oh Hell!, Israeli Whist, Romanian Whist, Ninety-Nine, La Podrida and Truf. Includes details on tips and strategies provided.
- Pagat: Last Trick Group
- Introduces the details of Toepen, Chicago, Bieten and Spar games. Includes related links as well.
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