Online Training and Instructional Resources
If you are new to umpiring or looking for a refresher, please watch these training videos.  

90ft Diamond Mechanics for Umpires
This is a primer for umpiring baseball with two umpires played on a diamond that has bases 90 feet apart.

60ft Diamond Mechanics for Umpires 
This is a primer for umpiring baseball with two umpires played on a smaller diamond (bases 60-75 feet apart).

Baseball Rules Made Easy
This simplifies baseball rules through the use of special graphics and actual footage.  AKA "Rules for Idiots".

See a Balk, Call a Balk
This video series contains definitive information on the baseball balk rule and its variations from the umpire and pitcher's perspective.

VideoUmp.com - Baseball Umpire Rules & Situations Instructional Videos
*Please note "Handle It!" and "Don't Show Me Up" videos contain profanity from real-life professional baseball situations.  Not recommended for audiences under age 18.