MLB announces modernization of Minor League system - World

MLB clubs will have four affiliates for a total of 120 Minor League teams, all holding a Professional Development League (PDL) license.

Explore LMCU Ballpark home of the West Michigan Whitecaps

Press release: MLB announces new modernized Player Development System and the 120 Minor League Baseball teams

Explore LMCU Ballpark home of the West Michigan Whitecaps

Bitcoin and Baseball: MLB's Oakland A's to accept the cryptocurrency as payment - World Baseball Softball Confederation

MLB announces changes to minor league structure featuring 120-team regional alignment - ESPN

Louisville Slugger Field (Louisville, KY) – Society for American Baseball Research

Following Contraction, Minor League Baseball Is Smaller. But Is It Better? - Global Sport Matters

MLB settles minor league players' wage-and-hour class action suit for $185 million

Major League Baseball threatens to create new minor league system - The Boston Globe

MLB Ballparks, From Oldest to Newest

Minor leagues get a reset with 120-team regional alignment

MLB Wants To Expand; Candidate Cities Identified - Metsmerized Online

Seasons Of Change For Minor League Baseball — College Baseball, MLB Draft, Prospects - Baseball America