All American Football News: Draft coverage and statistics during the season.
BudGoodeSports.com: Statistics from a statistical consultant to 21 out of the 31 NFL teams.
Coffee Talk: Offensive and defensive rankings.
coolstandings.com: Presents football standings in alternative methods.Calculates the chance of each team making the playoffs by simulating the remainder of the season.
databaseFootball.com: Complete statistical history of the NFL, including stats, standings and awards for every team and player.
Gridiron Grumblings - NFL Power Rankings: Statistical basis for the ranking of all NFL teams on a weekly basis.
JFM's NFL Power Ratings: NFL power ratings with home field advantages. Also includes tendency graphs.
NFL Quarterback Rating Calculator: Includes descriptive statistics for a 6 year cross-section of ratings, and explaination of the rating formula, a histogram, and links.
NFL Statistics - CNN/SI: Search for all types for statistics by player, league, or team.
NFL Statistics Index - ESPN.com: Browse leaders by team, player, or individual statistic.
NFL Stats: CBS.SportsLine.com - Preseason, NFL, AFC, and NFC statistics.
NFL Trends, Tables, ad-hoc Queries: 10 years of historic NFL statistics presented in trends, tables and the best ad-hoc query capability on the web.
Pedder Passer Rating: Alternate method of calculating a Passer Rating, based on total stats of other passers in the league. Includes a calculator that also devises the NFL Passer Rating.
Sonny Moore's NFL Computer Power Ratings: Power ratings that can be used to predict game outcomes. Ranks teams according to power rating strength.
Stats Index - NFL.com: Statistics by team or player for both the regular and post-season.
TwoMinuteWarning.com: Innovative statistical coverage of the NFL, including drive chart statistics, play by play breakdowns, and "directional rushing" tables.