The daily version of my NFL rankings is now up and running. These rankings check the latest point spreads each morning and update accordingly, with the explicit goal of deriving what the betting market thinks is each team's true strength. If my model was perfect, you could duplicate the point spread of any matchup by taking the difference of the two team's GPF (Generic Points Favored) and adding 2.5 points for home field advantage.
For additional background, refer to these posts:
NFL Rankings - Now Updated Daily
NFL Rankings - Strength of Schedule
NFL Rankings - Projected Wins
Also, my backend database for these rankings is a a Google Docs spreadsheet, which doesn't always cooperate. If anybody is having trouble getting the rankings to load, feel free to shoot me an email, or leave a comment below.