- Underground History ...www.starfury.demon.co.uk/uground
- Clive's UndergrounD Line Guides This site is not an LU site, nor is it associated with LU. Clive's UndergrounD Line Guides are a series of pages describing the London Underground system and the independent railways of the London area - the Docklands Light Railway and the Croydon Tramlink (neither is a part of London Transport, though the DLR used to be). Each line is covered on a single page.www.davros.org/rail/culg
- The online tube journey planner for use on the London Underground ...www.tubeplanner.com
- www.londonrailways.net