Digital Library of American SlaveryAn excellent, free database from UNC-Greensboro. Designed as a tool for scholars, historians, teachers, students, genealogists, and interested citizens, the site provides access to information gathered and analyzed over an eighteen-year period from petitions to southern legislatures and country courts filed between 1775 and 1867 in the fifteen slaveholding states in the United States and the District of Columbia. Be sure to click "Browse Subjects" to get a sense of the breadth of the database.