Here's the book that ESPN's Rob Neyer has called "the best book of its kind." Updated for the 2002 season, the BASEBALL PROSPECTUS analyzes every top player in each organization all the way down to rookie ball and does it with objective, intelligent commentary. The PROSPECTUS gives the final word on what the players did, why they did it, and what they're going to do in the future. Readers will get the in-depth statistics covering every crack of the bat from the 2001 season that they would expect. They'll also find entertaining essays on every team and articles on special-interest topics not found anywhere else. Sprinkled throughout are the same touches of irreverent humor that BASEBALL PROSPECTUS readers enjoy and expect. The exclusive Davenport Translations again compare performances across leagues and ballparks, and the PROSPECTUS provides new ways to analyze everything, from starting pitchers' win-loss records to pitcher workloads to bullpen effectiveness. Find out why ESPN's Peter Gammons says, "BASEBALL PROSPECTUS's rankings are an invaluable tool. If more general managers understood them, they wouldn't do some of the trades they do."
Baseball Prospectus is an organization that publishes a website, BaseballProspectus.com, devoted to the sabermetric analysis of baseball. BP has a staff of regular columnists and provides advanced statistics as well as player and team performance projections on the site.
Since 1996 the BP staff has also published a Baseball Prospectus annual as well as several other books devoted to baseball analysis and history.
The successors to the Bill James Baseball Abstracts, sans the Bill James and written by a committee. I have read a few of these and they were a godsend before I realized that people discussed sabermetrics on the internet. It was only later that I learned these guys and the founders of Baseball Primer were on something called USENET all along. (I'm never an early adapter of anything.)