Don't miss this place. The official page for the SBB Here you will find all the information regarding SBB trains from the official SBB web site. Here is the official page for the DB trains in Germany. Information on trains, itineraries and other good stuff. This is the home page for the French SNCF railways.
All information regarding the routes and trains in France, is included here.
Stay in french language as the English version is not so good. Austria Tourism page Don't miss this one. This is the official Austrian Touristic page. You can see maps and all kind of touristic information for the region of Tirol and Salzburg. Hotels and other things.