FremoFriendship Association of European Model Railroaders, great information on loads of model railroad sites and about the association. 
Gainsborough Old HallGainsborough Old Hall is a unique medieval manor house right in the centre of Gainsborough. Sir Thomas Burgh built it between 1460 and 1480 and it remains much as he left it, to the delight of thousands of visitors each year. 
Great Northern Society Catering for all interested in any aspects of the
Great Northern Railway and its successors – up to the present day 
Glue It Model Makers SiteLoads of information about model making 
Kard KitsScenery kits 
Lincoln Railway SocietyThe Lincoln Railway Society was formed in 1979 and caters for the interests of all rail enthusiasts, both young and not so young! 
Steve‚Äôs Railway PageA very interesting page from Australia with loads of useful stuff. 
The ‘O’ Gauge GuildAn organisation, run by, and for, members to encourage and assist the development of 0 Gauge railway modelling. 
The Central Southern Gauge 0 Model Railway GroupThe Central Southern Gauge 0 Model Railway Group meets on a Wednesday evening once a month at the Allendale Centre in Wimborne, Dorset, UK. This site provides a wealth of information and useful links 
THE UK Model Shop DirectoryThe LARGEST Online resource for
British Model Railway enthusiasts. 
Wisbech Model Railway clubModel railway club in Wisbech Combines how-to model railroad scenery tips with travel, interesting layouts and videos. 
Friendsofbrigg-lincolnlines Rail user group called the Friends Of The Brigg & Lincoln Lines Site with history of signal boxes, yards and stations in the Nottinghamshire, South Yorkshire, Derbyshire and Humberside regions Branchstow are specialist railway booksellers, with a particular emphasis on high quality books produced by small independent publishers.