Sports Stats Sites: A Quick Compendium

Baseball
1. Baseball Reference
2. Retrosheet
3. Fangraphs
4. Baseball Prospectus

Basketball
1. Basketball Reference
2. College Basketball Reference
3. Basketball Prospectus

Football
1. Pro Football Reference
2. Football Outsiders

Hockey
1. Hockey Reference
2. Puck Prospectus


I think those are the major non-mediaconglomerate stat sites. Am I missing anything?