Moonshot: MLB Isn't Ready to Deploy Robot Umpires - Baseball ProspectusBaseball Prospectus
In Defense of Umpires: Why Complaints About MLB's 'Ump Show' Problem Miss the Mark, News, Scores, Highlights, Stats, and Rumors
MLB umpires show discrimination against non-white players, according to new study
Baseball Prospectus Insightful analysis for the discerning baseball fan
Baseball and race in Baltimore
Baseball Prospectus Insightful analysis for the discerning baseball fan
MLB's sticky situation: Enforcing its own rules is putting baseball in a bad light
Umpire Substance Checks Put Pitchers in Awkward Positions - The New York Times
SMBUA – Southeastern Massachusetts Baseball Umpires Association
Angel in the Infield - Baseball ProspectusBaseball Prospectus