| Amateur Baseball Umpire: Contains information on baseball umpiring and officiating. |
| Baseball and Umpire Links: Link directory of baseball rules and umpiring resources. |
| Baseball Umpires Rules and Interpertation: Major League Baseball rules, interpertations, questions and answers, newsletter, do's and don't on the playing field |
| Canadian Blues Umpires: Provide information for Canadian young old boys girls teenagers adult guys gals umpires to gain more experience on the baseball fields through work in the United States. |
| Interactive Baseball Rules: Seeks to create a fun environment for baseball umpires, players, coaches and fans to enhance their understanding of the rules of the game. Offers online quiz, along with rules/officiating resources. |
| Jim's Baseball Rules - Little League: Provides a myriad of baseball rules and regulations, FAQs, umpiring tips, myths and links. Gathered by a certified Little League umpire and former Chief Umpire for California District 3. |
| Major League Baseball: Official Rules: Complete rules of major league baseball, with diagrams and glossary. |
| Official Communications: Offers baseball rules and officiating videotapes. Features online shopping and video previews. |
| Pony Baseball and Softball: Official site includes affiliated members links, news, calendar, tournaments, and World Series coverage. |
| Tampa Bay Umpires Clinic: Amateur baseball umpiring clinic for high school and youth league umpires. Listing of contacts and schedule. |
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