Long Island Baseball Umpires Organization - LIBUO
MLB umpires have a new signal to call this spring - Sports Illustrated
Umpire Career What It Takes to Be a Professional
MLB umpire job responsibilities
If you aren't a white male, YER OUT of luck as an umpire - Global
MLB umpire job responsibilities
MLB umpire Cuzzi still loyal to local roots - The Observer Online
10 Secrets of MLB Umpires
MLB: Umpire Hernández blew calls, losing World Series job
The MLB Umpires Association is a flawed and opaque organization
The Average Umpire Is Almost 50. The Best Ones Might Be in Their
Baseball umpire : Career Outlook: U.S. Bureau of Labor Statistics