- Gribblenation.com - http://www.gribblenation.com/
Extensive information primarily covering the eastern third of the continent.
- CANAMEX Trade Corridor - http://www.canamex.org/
Transportation corridor connecting Canada, the United States, and Mexico.
- RoadTrip America - http://www.roadtripamerica.com/
Various features including a forum, a list of scenic drives, a mobile Internet connection listing, and a gallery of unusual road signs, as well as other preparatory travel information.
- Places 2 Ride - http://frontpage.tulsaconnect.com/maduko/
A guide to motorcycle destinations - scenic highways, backroads and trails.
- Driving In The USA And Canada - Types Of Roads - http://freespace.virgin.net/john.cletheroe/usa_can/driving/roads.htm
Part of John Cletheroe's USA and Canada Holiday Hints. Resource about U.S. and Canada infrastructure written especially for British travellers.
- The Expressway Site - http://www.expresswaysite.com/
Describes by state or province the highways which are high-speed divided thoroughfares with occasional at-grade intersections and no driveways.
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