Chicago and Northwestern Historical Society
Illinois Railway Museum
Union, Illinois. Largest collection of railroad equipment in the US.
Burlington Northern Santa Fe Corporation
The offical site of the better, newer Santa Fe Railroad
Union Pacific Railroad
Somewhere West of Denver
Chuck Donaldson has some great images from the western US. over many years.
Burlington Northern, Yarrow Valley Sub Division
A friend's web site in the United Kingdom. He is modeling the BNSF.
Chicago Area Garden Railway Society
North West Scene
A site that has daily video updates of trains in the United Kingdom.