North London Railway Historical Society
- Catering to everybody interested in the story of the North London railway and the many associated lines, from 1846 to the present day.
- http://www.nlrhs.org.uk

London and North Western Railway Society
- Information on the operation and practices of the Premier Line, with diagrams, photographs, biography, bibliography.
- http://www.lnwrs.org.uk

The Wightwick Hall Restoration Group Website
- This site is maintained by the Wightwick Hall 6989 Restoration Group. It provided details of the engine's history, rescue from the scrapyard and the restoration activity to date.
- http://www.wightwick-hall-6989.com

Swiss Railways Society
- UK based society for Swiss railway enthusiasts. Branch meetings, events diary, prospectus, and membership information.
- http://www.swissrailsoc.org.uk/

Irish Railways and Transport Foundation
- The Irish Railways and Transport Foundation has been established to halt the rapid disappearance of industrial archaeology and sociology which the various transport modes represented on the island of Ireland for more than 200 years.
- http://www.irtf-ie.org

Irish Railway Record Society
- Caters for all who have an interest in Ireland's railways.
- http://www.irrs.ie