Title.
http://members.aol.com/jfepperson/stat.html
The statistics of slavery
http://www.pbs.org/wgbh/amex/lincolns/slavery/index.html
This pbs site discusses many topics related to slavery
http://www.pbs.org/wgbh/amex/lincolns/slavery/es_underground.html
This part of the pbs site is about the Underground Railroad
http://www.nps.gov/history/delta/underground/under.htm
A general overview of slavery
http://www.nationalgeographic.com/features/99/railroad/
Great visual look at the Underground Railroad
http://education.ucdavis.edu/NEW/STC/lesson/socstud/railroad/Map.htm
Map of the routes taken on the Underground Railroad
