| Commissaire.net | | A non-profit resource center for race officials who work at national or international level bicycle races. The site includes monthly e-magazine, resources, discussion, and regional information. |
| EveryRule.com | | Lists rules for games, etiquette, and other situations. Also articles concerning rules-related issues. |
| Officiating.com | | Officiating news, links, violations, fouls, mechanics, philosophy, rules, and discussion boards. |
| Ohio Referee | | Sports officials and organizations can have an online presence that is database driven and customizable. |
| Referee Magazine | | Contains sample articles, editorial archives, contact, advertising, and subscription information. |
| Referee/Umpire Home Page | | Information about officiating camps, state and local associations, and numerous message boards for baseball, basketball, football, softball, hockey, volleyball, amateur wrestling, soccer, and track and field. |
| Richard Steele | | The World Boxing Hall of Fame referee provides assistance to those who would like to become professional boxing referees. |
| Start Officiating | | Information on how to become a sports official. State and international associations, along with FAQs on the many aspects of being an official. |
| The Referee Forum | | Discussion board for UK football referees. Includes bulletin boards, polls and quizzes for and about football referees. |
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