Driveline Baseball
Unknown
Training company whose site publishes research, blog articles, and program breakdowns on pitching velocity, hitting mechanics, and arm care, much of it built on motion-capture and bat-sensor data. Sells paid programs alongside the free writing.
More resources on Baseball
baseball-reference.com
Baseball-Reference.com is a comprehensive baseball statistics database with detailed player, team, and league stats, game logs, season summaries, and historical records, plus bios and advanced metrics.
fangraphs.com
FanGraphs is a comprehensive baseball analytics site offering advanced stats, projections, and leaderboards, along with in-depth articles and detailed player and team pages.
Baseball Savant
MLB's public Statcast site, with searchable pitch-by-pitch data, exit velocity and spin leaderboards, and per-player visualisations. Useful for checking how a hitter or pitcher actually performs rather than relying on traditional box-score statistics.
Effectively Wild
Ben Lindbergh (The Ringer), Meg Rowley (FanGraphs), and an array of guests talk about baseball with an analytical bent, covering a mix of timely topics from the serious to the absurd a few times per week.
Moneyball
Account of the 2002 Oakland Athletics and general manager Billy Beane, who used undervalued statistics such as on-base percentage to compete against far richer clubs. Explains why sabermetric thinking spread through professional baseball front offices.
The Baseball Codes
Reported account of baseball's unwritten rules: retaliation pitches, bat flips, stealing signs, running up the score, drawn from player interviews. Explains why certain plays provoke fights that box scores never record.