http://slaveryimages.org/s/slaveryimages/page/welcome

“This educational resource is a digital archive for hundreds of historical images, paintings, lithographs, and photographs illustrating enslaved Africans and their descendants before c. 1900. The two-part website was created for teachers, researchers, students and the general public. It exists to assist anyone interested in visualizing the experiences of Africans and their descendants who were enslaved and transported to slave societies around the world.” Images are culled from primary and secondary sources, contain bibliographic citations, and are searchable by category or keyword.