The following updated weekly: (during the season)

The 2009  season.
Composite records for the *2000-2009 decade (last updated 12/7/09)

The Following updated yearly (up to 2/2/09):

The 89 NFL Championships summaries by Organization, City & State.
The 43 Super Bowls and the Super Bowl standings.
Composite standings since the AFL merged into the NFL in 1970 *(1970 - NOW)
Official and unofficial versions of all time TEAM win-loss RECORDS plus location and name changes.
Present Coaches and Stadiums.

89 past NFL seasons:

The 2000 - 2001 - 2002 - 2003 - 2004 - 2005 - 2006 - 2007 - 2008 -  seasons.
The 1990 - 1991 - 1992 - 1993 - 1994 - 1995 - 1996 - 1997 - 1998 - 1999 seasons.
The 1980 - 1981 - 1982 - 1983 - 1984 - 1985 - 1986 - 1987 - 1988 - 1989 seasons.
The 1970 - 1971 - 1972 - 1973 - 1974 - 1975 - 1976 - 1977 - 1978 - 1979 seasons.
The Composite Standings of the NFL for the entire pre 1970 period.
The 1960 - 1961 - 1962 - 1963 - 1964 - 1965 - 1966 - 1967 - 1968 - 1969 AFL & NFL  seasons.
The 1950 - 1951 - 1952 - 1953 - 1954 - 1955 - 1956 - 1957 - 1958 - 1959 seasons.
The 1940 - 1941 - 1942 - 1943 - 1944 - 1945 -(1946 - 1947 - 1948 - 1949 AAFC & NFL) seasons.
The 1930 - 1931 - 1932 - 1933 - 1934 - 1935 - 1936 - 1937 - 1938 - 1939 seasons.
The 1920 - 1921 - 1922 - 1923 - 1924 - 1925 - 1926 - 1927 - 1928 - 1929 seasons.

*8 Past decades:

1990s The 49er's/Cowboy's decade.
1980s The 49er's decade.
1970s The Cowboy's/Steeler's decade.
1960s The Packer's decade.
1950s The Brown's/Lion's decade.
1940s The Bear's decade.
1930s The Bear's/Packer's decade.
1920s The Bear's decade.

*6 Past Eras:

1993 - 2002 The Packer's modern era.
1990 - 1993 The Bill's era.
1983 - 1988 The Bear's modern era.
1979 - 1988 The Redskin's era.
1972 - 1981 The Steeler's era.
1969 - 1976 The Vikings era.

* All of the above composite standings include regular and post season games. The post season includes records from the NFL Playoff Bowl.