The Railway Magazine - Britain’s best-selling general rail title - by far!!

Barrow Hill RoundhouseBluebell Railway
Bodmin & Wenford RailwayBo'ness & Kinneil Railway
Buckinghamshire Railway CentreCaledonian Railway
Chasewater Light RailwayCrich Tramway Village
Chinnor & Princes Risborough RailwayCholsey & Wallingford Railway
Churnet Valley RailwayColne Valley Railway
Coventry Railway CentreDean Forest Railway 
Didcot Railway CentreEast Anglian Railway Museum
East Kent RailwayEast Lancashire Railway
East Somerset RailwayEmbsay & Bolton Abbey Railway
Ffestiniog RailwayGloucestershire Warwickshire Railway
Great Central RailwayGwili Railway
Keighley & Worth Valley RailwayKent and East Sussex Railway
Lakeside & Haverthwaite RailwayLavender Line
Llangollen RailwayLincolnshire Wolds Railway
Middleton RailwayMangapps Railway Museum
Mid Hants Railway/Watercress LineMid Norfolk Railway
Midland Railway ButterleyMuseum of Science & Industry
National Railway MuseumNene Valley Railway
North Norfolk RailwayNorth Yorkshire Moors Railway
Northampton & Lamport RailwayNottingham Transport Heritage Centre
Paignton & Dartmouth RailwayPeak Rail
Pontypool & Blaenavon RailwayPlym Valley Railway
Rutland Railway MuseumSevern Valley Railway
Shackerstone Railway/Battlefield LineSouth Devon Railway
Strathspey RailwaySwanage Railway
Swindon & Cricklade RailwayTyseley Locomotive Works
West Somerset Railway 
Railway Correspondence & Travel SocietyUK Heritage Railwaysge Railways - Full Listing and Details
Gorton Loco Works and MPDFrixo - Frixo is a road traffic reporting site which may be a useful resource for enthusiasts. It provides users with live traffic information and gets updated every 3 minutes using various road sensors.
Railways in Worcestershire - Has an excellent section on Worcestershire Engine ShedsChris Ward's Annesley Website - Excellent site detailing Chris's firing days, with a good selection of photographs
Newton-le-Willows & Earlestown - An excellent site relating to the history of these works
Old Maps On Line for Shed Site Searches:
1 Old Maps - an excellent resource offering four historical mapping dates
2 New Popular Edition Maps -OS maps from the 1940's
Old Ordnance Survey Maps - OS maps from the 1920/30's with modern overlay
Branch Line Britain - Superb Site - gives information about Britain's railway branch lines, plus other minor railway lines in Britain, including history, stations, places of interest and journey reviews