The following are links to useful sites, many I've used for years......
Locomotive
www.uklocos.com A searchable DB detailing all preserved/industrial loco's viewable to the general public.
www.preserved-diesels.co.uk Preserved Diesels including a regular news page and much more info.
www.pleg.org.uk Preserved Locomotive Enthusiast Group, includes a stock list on the status of loco's.
www.timewarp.abelgratis.com "The largest collection of 1980's loco hauled gen on the net" BY FAR!!
www.preservedshunters.co.uk Excellent site for all shunters in preservation including industrials
www.class47.co.uk www.brushtype4.co.uk Two sites for everything there is to know about the 47's.
Rolling Stock
www.vintagecarriagestrust.org Quite simply the only comprehensive listing of preserved/private carriages in the uk. Also includes the only DB for wagons, horse drawn vehicles & turntables!
www.departmentals.com Lists all departmental/internal user in service, preservation & since scrapped.
www.ontrackplant.com As above but covers all plant including trolleys & Road Railers.
www.railcar.co.uk The Railcar Association. All there is to know about 1st generation DMU's.
Heritage Lines
http://drps.synthasite.com The Darlington Railway Preservation Society
www.kirkbystepheneast.co.uk Stainmore Railway Company
Locomotive Groups
www.class56group.co.uk A site dedicated to the history & preservation of loco 56040.
www.heritageshunters.co.uk Details the many shunters owned by the trust.
Rolling Stock Groups
www.brcw.moonfruit.com "aiming to fully restore and maintain six 1950's Class 104 Diesel Railcars."
www.lnerca.org LNER Coach Association, restoring/operating a collection of ex-LNER and/or constituent companies vehicles.
www.yorkareagroup.net16.net/ York Area Group of the NYMR, detailing stock owned/operated by members.
Society & Clubs
www.gersociety.org.uk The Great Eastern Railway Society. Details the former GER, its predecessors/successors
www.hmrs.org.uk The Historical Model Railway Society, A Definitive Rail History Source.
www.lnwrs.org.uk London & North Western Railway Society. All there is to know about the ‘Premier Line’
www.lcgb.org.uk Locomotive Club of Great Britain. Supporters of the preservation movement.
Publications
www.irsociety.co.uk Huge coverage of the Industrial Railway scene including the popular 'EL' books.
www.milzpublications.co.uk A site for "what will hopefully become a series of railway fleet list books."
Fotopic Sites
http://kirkbystepheneastrailway.fotopic.net Stainmore Railway at Kirkby Stephen.
http://exbarrysteamlocos.fotopic.net An attempt to photograph every ex-Barry steam loco.
www.railphotoarchive.org An opportunity to add your own photo's to an extensive gallery.
http://roystonsphotos.fotopic.net/ Roys Railway World. Includes all categories of preserved railways.
http://david.fpic.co.uk/ David's site including a mixture of preserved/mainline photo's.