Amateur Baseball Umpire
   Contains information on baseball umpiring and officiating.
   http://www.amateurumpire.com/

Baseball Umpires Rules and Interpertation
   Major League Baseball rules, interpertations, questions and answers, newsletter, do's and don't on the playing field
   http://baseballumpires.com

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.
   http://www.macroweb.com/ibrules/index.html

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.
   http://eteamz.active.com/baseball/rules/obr/index.cfm?

Major League Baseball: Official Rules
   Complete rules of major league baseball, with diagrams and glossary.
   http://www.mlb.com/NASApp/mlb/mlb/official_info/official_rules/foreword.jsp

Official Communications
   Offers baseball rules and officiating videotapes. Features online shopping and video previews.
   http://www.officialcom.com/

Pony Baseball and Softball
   Official site includes affiliated members links, news, calendar, tournaments, and World Series coverage.
   http://www.pony.org/