http://memory.loc.gov/ammem/snhtml/

http://pbs.org/wgbh/aia/part4/index.html 

http://memory.loc.gov/cgi-bin/query/r?ammem/rbaapc:@field(DOCID+@lit(329105)):

http://loc.gov/exhibits/african/intro.html 

http://lcweb2.loc.gov/ammem/aaohtml/exhibit/aointro.html 

http://ups.edu/history/afamhis/longtxts/turner.htm 

http://ibiscom.com/slaveship.htm

http://ibiscom.com/fdoug.htm

http://odur.let.rug.nl/~usa/D/1826-1850/slavery/fugitxx.htm 

http://odur.let.rug.nl/~usa/D/1826-1850/slavery/confesxx.htm 

http://toptags.com/aama/books/book10.htm 

http://nationalgeographic.com/features/99/railroad/j2.html 

http://afroam.org/history/slavery/index.html

http://xroads.virginia.edu/~HYPER/wpa/wpahome.html 

http://undergroundrailroad.org/content.asp?id=170

http://nytimes.com/learning/general/featured_articles/990329monday.html

http://nytimes.com/learning/general/featured_articles/000622thursday.html

http://memory.loc.gov/ammem/mdbquery.html 

http://nytimes.com/learning/general/featured_articles/981116monday.html

http://vi.uh.edu/pages/mintz/primary.htm