Sabermetrics

• Baseball Graphs  - Statistical reference offering a collection of graphs from Major League Baseball. Site also features news and an editor blog.
• Baseball Prospectus  - Offers player and team analysis in addition to information on the book.
• Baseball Think Factory  - Site dedicated to the analysis of baseball, offering information and resources for game players and sabermetricians. Includes simulations and essays.
• Red Sox Stats  - Offers sabermetric statistics for the Red Sox organization. With a glossary, prospects, and pitching and hitting data.
• Sabermetrics 101  - Provides a background into the study of baseball using Sabremetrics to help teach readers about the objective analysis of player performance.
• Society For American Baseball Research (SABR)  - Official site offering organizational data, research and publications information, news, and a list of awards.