University of California
Us Geological Survey: Cartogram Central
The USGS offers detailed information on Types of Cartograms, Congressional Districts, Software for Cartograms, Publications, and a Carto-Gallery.
Curated OER
Etc: Maps Etc: Physical and Political Map of Africa, 1879
Map of pre-colonial Africa, showing the predominately native countries and territories of the African continent in 1879. The counties include the Barbary States of Morocco, Algeria, Tunis, Tripoli and Fezzan, the Egyptian territories of...