Stat-junkie.com
View statistics by several types of options. Hits, wins, loses and player.

RIOT -- Major League Baseball Playoff Races
UC-Berkeley's Industrial Engineering and Operations Research department has created their own daily calculation metric for analyzing team record performance based on historical data. Results include the number of wins needed to date to guarantee a first-place division finish or playoff run, as well as to avoid elimination from first or the playoffs. Calculations provided thanks to the research of Professor Dorit S. Hochbaum.

Society for American Baseball Research (SABR)
Research information, SABR on-line bookstore, on-line membership application, bulletin board comments page, and baseball links.

SABR/Bob Davids Chapter
Regional SABR chapter covering major and minor league baseball teams in the Mid-Atlantic area.

Baseball Prospectus Online
In-depth columns, prospect interviews, transaction analysis, and player cards containing Baseball Prospectus's Davenport Translations. Metrics for evaluating hitters, starters, and relievers updated daily; four to ten columns presented free of charge on the site per week.

High Boskage House Baseball Analysis Web Site
Statistics are updated daily. Comparisons by position, league, and historical data. Articles on theory and physics can also be found here.

Society for American Baseball Research (SABR) UK
An archive of research articles and illustrations and information on how to join the UK chapter of SABR.

Tango On Baseball
A collection of various research about linear weights, runs, and wins.

Rhoids Sports Analysis
Players of the year, the All-National and American League Teams, the best value teams.

Breaking Down ERA: Separating Skill From Luck
An essay by Geoff Bauer and Aaron Chalfin regarding how the effects of luck can be extrapolated and removed from Earned Run Average, so as to better reflect pitcher skill.

Baseball Immortals: Lee Sinins' Statistical Hall of Fame
Seeks to be an alternative Hall of Fame. Includes Lee's comments on those that don't belong and some that do but the Hall has missed.

Centre Sport Statistics
Contains statistics of league, teams and players from(1871-2002).

Original Baseball Research
Personal site of Clifford Blau, who has made his sabermetric studies on such topics as Bill Mazeroski's fielding, the effects of artificial turf, and park factors available.

Voros' Baseball Analysis
Contains many archived sabermetric studies, including seminal work on defense-independent pitching statistics.