Here are links to other map resources, created by cartophiles who are not RMCA members–yet. If there are additional links you would like to see here, please e-mail the webmaster.
Map History/ History of Cartography. Created by a retired map librarian at the British Museum, Tony Campbell.
Maps of Pennsylvania. A comprehensive site addressing maps of PA. Well researched with many images of early roadmaps. Recommended for help to date early East Coast oil company maps.
The Story of Standard Oil of Cailfornia Scenic Cover State Road Maps. The title says it all.