- Portal with a collection of rules, as well as a directory of domino games for Windows, Macintosh, PocketPC, PalmOS, and online play.
- Open Dominoes Game
- The proposed game allows one to place dominoes elements onto playing board squares.
- Texas 42
- Rules and strategy for 42, a four-player domino game. Graphics and sample hand included. Download available.
- Western Domino Games
- Information on the history of dominoes, as well as rules for dozens of domino games and variations.
- Wikipedia: 42 (dominoes)
- Encyclopedia article with history, rules, terminology, and rules variations.
- World Championship Domino Tournament
- Annual tournament In Andalusia, Alabama with a history of awarding over $450,000 in prize money and trophies. Includes area information, history of dominoes, previous champions, prize money, registration, tournament rules, and schedule of events.