Off Road Routes:
Downloadable tracks and lanes suitable for 4x4 vehicles documented
with photographs, GPS, descriptions and distances, graded by
difficulty.
http://www.offroadroutes.net/
World Highways Magazine:
News on designing, construction, financing, maintaining and
operating major roads worldwide.
http://www.worldhighways.com/
IHCC Web Library:
International Highway Construction Corporation, supporters of a
highway system connecting most of the world which would include a
Bering Strait bridge and Japan-South Korea tunnel.
http://www.iijnet.or.jp/IHCC/index.html
