Wikimedia
Wikipedia: Dred Scott v. Sandford
This site from the Encyclopedia Wikipedia provides information on the Dred Scott case, as it progressed through the Missouri state court, the Federal court system, and the appeal that went to the Supreme Court.
PBS
Pbs: Dred Scott's Fight for Freedom (1846 1857)
Provides information on Dred Scott and his fight for freedom, and the events leading up to the Supreme Court trial in 1857.