Odden's Bookmarks  - One of the most complete reference sites on the web for the map collector. Listings for maps, atlases, and all types of cartographic data.

 
Guide to Maps Published by the Library of Congress

The MapForum - A monthly on-line map collecting magazine.

 Collector Cafe - A new monthly on-line web site for collectors, news, and advise on collecting.

Imago Mundi - The International Journal for the History of Cartography
 

Map History  - Images of early maps on the web

David Rumsey Map Collection  - The David Rumsey Collection focuses on 18th and 19th century North and South American cartographic materials.

Historical Museum of Southern Florida - Exhibitions, Programs on the history of Florida and the Gulf of Mexico.