Enthusiasts are being asked to update arguably the greatest map
collection in the world. The British Library wants online volunteers
to add further insights to its vault of ancient terrains, using Google
Earth and location tagging to work out where historic sites might lie
today.
http://www.culture24.org.uk/history%20%26%20heritage/art417833--
Tracey P. Lauriault
Post Doctoral Fellow
Geomatics and Cartographic Research Centre
https://gcrc.carleton.ca/confluence/display/GCRCWEB/Lauriaulthttp://datalibre.ca/613-234-2805