Map Tools:

Map Quest
Yahoo Maps
Google Maps
Cybermaps

Useful Trucking Links:

Brands Truck Insurance
LoadXpert Axle Load Calculation and Load Planning software for trucks and railcars.
GoTruckLoad Free web software for checking legal weights for trucks.
L.O.A.D.S.
Freetrip.com
Itellicast.com
Safety Regulations
Trucking Info
Ritchie Specs is a useful resource that can be used to find dimensional specifications for heavy equipment.
Ritchiewiki