Great website for first hand accounts regarding slavery http://www.spartacus.schoolnet.co.uk/USAslavery.htm
PBS website on slavery http://www.pbs.org/wgbh/aia/home.html
Long Island University website on slavery http://www.liu.edu/cwis/CWP/library/aaslavry.htm
Slavery and the making of America http://www.pbs.org/wnet/slavery/
Slavery in America http://www.slaveryinamerica.org/whats_new.htm