Great source for CDs, DVDs and sheet music
http://www.ejazzlines.com/
Ken Burns made the most comprehensive documentary on the history of jazz.
Jazz music is the only true "American" art form and to study it is to study
ourselves.
http://www.pbs.org/jazz/
Lincoln Center is probably the strongest advocates for jazz education in the
country. Wynton Marsalis is not only the artistic director, but a legendary
jazz trumpet player. Check out the education as well as the webcast portions
of this site.
http://www.jazzatlincolncenter.org/
History, education, posters, cds, sheet music and lots more
http://www.apassion4jazz.net/