National Railroad Passenger Corporation (AMTRAK)
The Corporation was established to develop the potential of modern rail service in meeting the Nation’s intercity passenger transportation needs.
National Association of Railroad Passengers an alliance of railroad passengers and citizens who want a transportation choice in the America.
NMRA Directory of World Wide Rail Sites real and model train offerings.
RailWatch public education group that documents railroad accidents.
Sites of Interest - Trains group of railroad link topics.
Side Tracked lists specific links railroads and identifies their current status.