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.