Some links below to favorite sites and scholars with shared interests in unusual maps:
Susan Schulten is essential reading for anyone studying the history of America and American maps.
John Krygier has a great site at makingmaps.net with many interests in common, including making your own maps, Jacques Redway, and the broader constellation of artists around Richard Edes Harrison.
The Washington Map Society has great programming, a great journal, and just launched an excellent new website in April 2021.
The PJ Mode Collection of persuasive maps at Cornell.
Strange Maps at bigthink.com