Round Earth, Flat Maps
The why's and how's of mapmaking. Interesting site on how to project a round planet onto a flat surface. Also included are the different types of “projections”.

USGS: What Do Maps Show
Great learning tool for students of all ages. Includes lesson plans, student activities and downloadable map packets.

The Earth and the Heavens
The Art of the Mapmaker from the British Library.

Ptolemy's Geography

Mapmaker, Mapmaker Make Me A Map
Shows you how maps are made and explains some of the terms of mapmaking.

The History of Cartography
The University of Wisconsin's history of cartography.

Map History / History of Cartography
Tony Campbell, at the British Library, and a history of cartography and links.

Mapping Virginia
How 400 years of Virgina mapping has occurred.