African American Perspectives: Pamphlets from the Daniel A. P. Murray Collection, 1818-1907
http://lcweb2.loc.gov/ammem/aap/aaphome.html
Searchable text of 351 pamphlets. Recurrent themes include the desire for uplift and improvement, the fight for civil rights, and the future of freed slaves.

American Slave Narratives
http://xroads.virginia.edu/~HYPER/wpa/wpahome.html
Transcripts of interviews with former slaves made by the Works Progress Administration in the 1930s.

Documenting the American South
http://sunsite.unc.edu/docsouth/
Includes several slave narratives.

Rare Map Collection - 19th Century Georgia - from Frontier to New South
http://www.libs.uga.edu/darchive/hargrett/maps/nine.html