Alaska Rail Road
The Alaska Rail Road is the last full service railroad in the United States.
http://www.akrr.com/

Amtrak
Find out more about Amtrak services, plan your trip, search for bargains, or book online at the homepage of America's best know rail company.
http://www.amtrak.com/

Amtrak Guest Rewards
Earn points when travelling with Amtrak and use them for free Amtrak travel, hotel and rental car rewards, airline miles and more.
http://www.amtrakguestrewards.com/

CountryLink
CountryLink’s rail and coach network reaches 334 destinations in New South Wales, the Australian Capital Territory, Queensland and Victoria.
http://www.countrylink.nsw.gov.au/

Die Bahn
Homepage of Germany's national railways carrier. You can use this site to plan a rail journey anywhere in Europe. Just click on the drop down menu by the flag to choose your preferred language.
http://www.bahn.de/
http://www.deutsche-bahn.co.uk/
http://www.nachtzug.de/

Elipsos
Runs the night-time Trenhotel railway services between Spain and France, Spain and Switzerland and Spain and Italy.
http://www.elipsos.com/

Euro Tunnel
Passengers stay with their vehicles in brightly-lit, air-conditioned carriages as they are whisked away to France on board a high speed shuttle. Find out more about the service on this page.
http://www.eurotunnel.com/

Eurostar
Cross-Channel rail link between the UK, France and Belgium.
http://www.eurostar.com/

HaCon
Links to the websites of railway companies across Europe.
http://www.hacon.de/hafas_e/www.shtml

iDTGV
France's low-cost high-speed train service aimed at younger travellers.
http://www.idtgv.com/
http://www.sncf.com/

Indian Railways
Find out more about the train services offered by world's biggest employer, with over 6 million employees across India. To find out more about the company's booking agents worldwide including the UK, Australia and South Africa, just click on the link marked "List of IndRail Agents".
http://www.indianrail.gov.in/

Irish Rail
Find out more about Ireland's rail network or book a journey online.
http://www.irishrail.ie/

Japan Rail
Find out more about rail travel in Japan including trips on the Shinkansen, or "Bullet Train" as it is known in the West.
http://www.japanrail.com/

Nachtzug
Deutsche Bahn's night rail service.
http://www.nachtzug.de/
http://www.nachtzugreise.de/
http://www.bahn.de/

National Rail Enquiries
Provides a national rail journey planner, departures and arrivals information, service bulletins, station information, rail maps, train operator information, passenger information, TrainTracker text messages, and more.
http://www.nationalrail.co.uk/

Network Rail
The "For Passngers" section contains heaps of information on tickets, timetables, train operating companies, major UK train stations and more.
http://www.networkrail.co.uk/

Pacific National
The website contains information on Australian trains, fares and timetables and rail passes, as well as an interactive route map, booking facilities and feedback forms.
http://www.nationalrail.com.au/

Rail.co.uk
Online British rail gateway: timetables, train information, train operating companies, travel bureaux and associated businesses.
http://www.rail.co.uk/

Rail Page
Worldwide train links.
http://www.railpage.org.au/links/

Rail Track
Railtrack is the authority responsible for overseeing Britain's rail network.
http://www.railtrack.co.uk/

Railteam
European high speed rail information portal and booking site.
http://www.railteam.eu/

RENFE
Timetables, prices, reservations and information on Spain's national rail operator.
http://www.renfe.es/

Routes International
Links to general rail related sites, high speed rail systems and projects, light rail systems and projects, railroad companies worldwide and rail supply companies. Very comprehensive.
http://routesinternational.com/rail.htm

SBB Online
Cleanliness, efficiency and legendary punctuality: the three things the Swiss federal railway network is world famous for.
http://www.rail.ch/
http://www.sbb.ch/

SNCB
Website of Belgium's national rail operator.
http://www.b-rail.be/

SNCF
SNCF is France's national rail company and operator of the magnificent TGV high speed express train.
http://www.sncf.com/
http://www.voyages-sncf.com/
http://www.sncf.co.uk/

Spoornet
Spoornet runs the trains on South Africa's national rail network. For information about its passenger services, just click on the appropriate link on the homepage.
http://www.spoornet.co.za/

TGV
Find out more about France's high-speed rail service at this official website.
http://www.tgv.com/
http://www.sncf.com/

Thalys
Technologically advanced trains operating out of Amsterdam, Brussels, Cologne and Paris.
http://www.thalys.com/

The European Railway Server
On this page you'll find links to the homepages of numerous European national rail operators, to rail fan pages with lots of information on a national railways, and to on-line timetables and travel planners.
http://mercurio.iet.unipi.it/

The Railway Touring Company
Offers competitively priced steam locomotive tours to destinations worldwide.
http://www.railwaytouring.co.uk/

Tranz Scenic
A New Zealand train operator with services nationwide.
http://www.tranzscenic.co.nz/

Travel Notes.org
Links to rail timetables and rail operators worldwide.
http://www.travelnotes.org/Travel/byrail.htm

Trenitalia
Official website of Italy's national rail operator. In Italian only.
http://www.trenitalia.it/
http://www.ferroviedellostato.it/

Trenok
Budget Italian rail service.
http://www.trenok.com/

VIA Rail Canada
VIA Rail Canada is an independent crown corporation set up in 1978. It operates trains in all regions of Canada over a network spanning the country from the Atlantic to the Pacific, and from the Great Lakes to Hudson Bay.
http://www.viarail.ca/

Wikipedia
Links to the websites of national rail operators the world over.
http://en.wikipedia.org/wiki/List_of_railway_companies