We can truly recommend visiting the St. Albans Signal box museum. Enthousiastic volunteers explain patiently what was (is) all done and needed to ensure safe train travel. A wonderful location where we spent a very pleasant afternoon in june. If you are anywhere near London and have any interest in railways, you should definately pay this museum a visit!
http://www.tlr.ltd.uk/sigbox/home.eb
http://www.thescoftt.com/
http://www.modeltreinhobby.nl/
http://www.hobbyinpraktijk.nl/
https://sites.google.com/site/rijnmoezel
Verkoopzelfuwhuis.com
http://www.janoehlen.nl/
https://www.mol4media.nl/
http://mscdeachterhoek.nl/