Whether your’re working on a project or just curious about the inner workings of our national pasttime, the Business of Baseball provides “research tools for those wishing to learn more about the business end of professional baseball.”
The site is broken into several areas, including Data (databases and spreadsheets), Relocation and/or Expansion (documentation by jurisdictions exploring relocation and/or expansion), Documents (various documents, both current and historical, dealing with issues within the business of baseball), Bios (biographies from members of SABR on persons within the business of baseball), Reading Material (suggested reading material from the Business of Baseball Committee of SABR), Interviews (interviews with individuals that have had, or still do impact the business of baseball), History, which chronicles key moments in baseball history as it relates to the business side of things. And, the BizBall Forums, a location where business of baseball articles are Blogged, and where discussion and commentary occur (registration required).
One thing that I found particularly appealing about this site is the Data section. There the site has downloadable Excel files of player salaries and team-by-team payroll.