The Afriterra Foundation is a non-profit Cartographic Library and Archive assembling and preserving the original rare maps of Africa in a definitive place for education and interpretation. There is an online searchable database of the maps in the collection.
Harvard University Map Collection
America's oldest map collection with over half a million maps, atlases from the 15th century to the present, gazetteers, and reference books on the history and science of cartography. Worldwide coverage of detailed, topographic maps. The Harvard Map Collection maintains hundreds of cartographic CD-ROMs, which consist of digital images, electronic atlases, and geospatial data sets.
Northwestern University Library: 16th- Early 20th Century Maps of Africa
This site features digital copies of 113 antique maps of Africa and accompanying text dating from the mid 16th Century to the early 20th Century. All scanned maps are authentic and originally collected by the Melville J. Herskovits Library of African Studies (or the Africana Library) at Northwestern University.
Stanford University Humanities Digital Infrmation Services: Luna Insight Series
This initiative includes antiquarian maps of Africa from the collections of the late Dr. Oscar I. Norwich and the Stanford University Libraries, dating from the late 15th to early 20th century.