Mah Jongg
- 21
- Solitaire MahJongg
- A website by Vegard Krog Petersen. Contains history, rules, layouts, and tilesets.
- 22
- The Mahjong Archives
- Archives of all postings made on Usenet rec.games.mahjong between January 1998 and November 2000.
- 24
- Zung Jung Mahjong Scoring System
- A website about Mah Jongg scoring system developed for international competitions.
- 25
- American Mah-Jongg Association (AMJA)
- Formed in 1999 to promotes the game in the United-States of America.
- 27
- World Mahjong Federation
- An initiative of the Korean based software company TankSoft. Nonprofit organization for promoting Mahjong. Hosts online games and organizes world-wide tournaments with money prizes. In Chinese, English, Korean, and Japanese.
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