www.pro-football-reference.com
Any stat you can think of, they have it. It’s the ultimate database for NFL teams, games, and players.
www.footballoutsiders.com
Great site for advanced statistics like the famous DVOA (Defense-Adjusted Value Over Average) taking into account quality of opponents, game situations, and various other important factors that go into the raw numbers of any football game box score. Please check out their site for thorough explanawww.aussportsbetting.com/datations of their methods and great insight during the season.
www.aussportsbetting.com/data
The final piece of the puzzle for us was finding a way to get reliable betting line information from past seasons. The best resource we located was the Australian betting site above who provides an excellent, easy to access and download, excel file with all the opening lines, closing lines, and final game scores dating back to 2006. These guys are champs for compiling this so please have a look at the link above if you would like to check out the data for yourself.
Sharp Sports Betting by Stanford Wong
You can find this book on amazon - digital download or paperback It’s a nice overview of sports gambling with a heavy emphasis on football (specifically NFL). The author presents some handy data tables and good statistical basics for the beginning gambler. Overall, it was a good book with helpful information to build off of for future fun with sports gambling.