Fangraphs: http://www.fangraphs.com/

Baseball Prospectus: http://www.baseballprospectus.com/

Tom Tango: http://www.tangotiger.com/index.php

Mitchel Lichtman: https://mglbaseball.wordpress.com/

The Hardball Times: http://www.hardballtimes.com/

Bill James: http://www.billjamesonline.com/

Brooks Baseball: http://www.brooksbaseball.net/

Baseball Savant: http://baseballsavant.com/

Baseball Reference: http://www.baseball-reference.com/

Kyle Boddy: http://www.drivelinebaseball.com/

Bobby Tewksbary: http://20e791slw7rzbmbhrvne1t6we9.hop.clickbank.net/?tid=SABERCOACH

Jerry Brewer: http://www.eastbayhittinginstruction.com/

Chas Pippitt: http://baseballrebellion.com/

Ryan Parker: http://www.baseballprospectus.com/author/ryan_parker/

Chris Dunn: https://twitter.com/ChrisDunn2

Curt Wilson: https://twitter.com/IA_Baseball_

Casey Fisk: http://www.fiskpt.com/