Official site offers a historical map index, contemporary map index and an aerial photography index.
http://alabamamaps.ua.edu/
Official site offers information on David Rumsey's historical map collection.
http://www.davidrumsey.com/
a source for historical maps with maps for Arab, Portuguese, Dutch, and Isle De France.
http://www.oldmaps.mu/
An innovative knowledge institution that combines the collections, services and staff expertise of the former National Library of Canada and National Archives of Canada.
http://www.collectionscanada.ca/
Offers information on an extensive digital map archive.
http://www.old-maps.co.uk/
Official site of the national mapping agency of Great Britain.
http://www.ordnancesurvey.co.uk/
a source for photographic publishers with local photos, maps, books, and jigsaws.
http://www.francisfrith.com/
A source of reproduction maps and images of significant historical events in U.S. history.
http://www.ushistoricalarchive.com/
Official site offering information on a variety of different maps and photography.
http://www.historic-maps.norfolk.gov
Online home of Mercia Maps and Historic Maps, British companies who off professional reproduction of antique maps.
http://www.maphisteria.com/