I was on the How Stuff Works Podcast last week doing a piece on the future of cartography and how GIS has changed our lives....if you are interested I come in at minute 13 at the link below...
....currently in London doing a few BBC Radio 4 shows and two TV appearances.....then off to Cambridge to teach a seminar on mapping the www....using Hilbert Curves...fun stuff..
All the best.
John Hessler, FRGS
Curator, Jay I. Kislak Collection of the Archaeology and History of the Early Americas
Specialist in Modern Cartography and Geographic Information Sciences
Geography and Map Division
Library of Congress
Full Bio: http://blogs.loc.gov/maps/author/jhes/