- (AU) NSW Cricket Umpires Association
 - With umpire and scorer members. - Cyber-Ref
- Sport officiating news, chat, discussion board.
- Laws of Rugby
- National Association of Sports Officials (NASO)
- New Hampshire Lacrosse Officials Association
- Includes upcoming events, official rules, newsletter, and more.
- Officiating.Com
- Online source for basketball officials.
- Referee
- Referee/Umpire
- Information on sport officiating including baseball, basketball, football, football, wrestling and others at the high school, college and pro levels.
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