Model Railways On Line source of prototype information, modelling articles, hints and tips, electrical and DCC articles, current and historical photographs
The content is North American HO and N but there are many articles on scenery, buildings, etc., that are applicable to all scales and countries with many tutorial videos embedded and free downloads.
THE UK Model Shop Directory, the LARGEST resource for British
Outline Model Railway enthusiasts. It provides the names, addresses, URL's and e-mail addresses of hundreds of shops and suppliers of British outline equipment throughout the UK.
The Model Railway Club , the oldest in the world, (established in 1910). They have their own building in London, not far from Kings Cross station. Visitors to London are very welcome to drop in on a Thursday evening.
Layout design, tools, electronics and miscellaneous
Cadrail, by Sandia, downloadable sample programme.
Right Track , by Atlas, downloadable sample programme
XTrkCAD by Sillub, downloadable sample programme which contains object libraries for P4 and Hornby-Dublo 3 rail as well as the popular ones like Peco. Sillub no longer maintains the product
Templot track and turnout template plotting software