Pro Football Reference – One of the best sites for football stats around, period, end of story.
General Football Talk and Strategy
Blitzology - Great blog about what else?
Goal-Line Stand – This is a part of the website The Score. I strongly recommend Alen Dumonjic’s contributions. He does a fantastic job with X’s and O’s and explaining football technique.
Smart Football – Chris Brown’s popular blog
Shutdown Corner - Yahoo! Blog featuring writers like Doug Farrar
Great Herm Edwards Presentation at Rookie Symposium 6/29/2011 – Three parts and nearly 40 minutes worth of wisdom every aspiring professional needs to know.
Coverage Shells - Wikipedia does a nice job explaining various defensive coverage types. A handy reference.
Cheesehead TV – Green Bay Packers Blog
RamsHerd.com – Saint Louis Rams Blog
Turf Show Times – Saint Louis Rams Blog
Fieldgulls.com – Seattle Seahawks Blog
18to88.com - Indianapolis Colts Blog
Bucs Nation – Tampa Buccaneers Blog
The Raiders Blog - Oakland Raiders Blog
Two Bills Drive – Buffalo Bills News Site and Forum
Extreme Skins – Washington Redskins Forum
The Warpath - Washington Redskins Fan Site
Mile High Report – Denver Broncos Fan Site
It’s All Over Fat Man – Denver Broncos Blog
Sign on San Diego – San Diego Chargers Fan Forum
Big Cat Country – Jacksonville Jaguars Blog
The Browns Board - Cleveland Browns Forum
Arrowhead Pride – Kansas City Chiefs
Rockmnation – Missouri Tigers Blog
GopherHole.com - Minnesota Golden Gophers Fan Site
Red and Black Attack – Northern Illinois Huskies Blog
Cougar Board – Brigham Young Fan Forum
Boneyard Banter - East Carolina Football Forum
MockDraftClub – A draft site with a unique twist and also features interesting prospect analysis. The take on Jets QB Greg McElroy is thorough and I happen to agree that he is underrated.