Ancient Monuments Society
Avoncroft Museum of Historic Buildings.
Buckinghamshire Archaeological Society Historic Buildings Group
British and Irish Archaeological bibliography.
Civic Voice
The Devon Earth Buildings Association.
Domestic Buildings Research Group (Surrey)
English Heritage
Essex Historic Buildings Group
Historic Farm Buildings Group
for the preservation of Georgian houses and gardens.
Provides access to information on listed buildings
An organisation which buys endangered/semi-derelict properties of an unusual character and converts them into holiday accommodation. The organisation has succeeded in conserving a number of very rare or important properties for the nation which might otherwise have been lost forever.
National Trust
Natural England
Norfolk Heritage Explorer.  Provides access to county and government heritage records and collections.
University of East Anglia Centre for East Anglian Studies, School of History, School of Art.
Norfolk Industrial Archaeology Society- buildings, plant, products, workers and personalities.
history, preservation and future of Norwich's buildings
Norfolk Archaeological and Historical Research Group- history, heritage and archaeology
Norfolk and Norwich Archaeological Society. Publishes Norfolk Archaeology.
Norwich Churches Trust: information about Norwich's medieval churches
British Association for Local History
Norfolk Archaeological Trust has responsibility for some key sites including St Benet's Abbey
Norfolk Churches Trust protect architecturally precious religious monuments of the county
all about clay and earth buildings
Oxfordshire Buildings Record
UK Association of Building Preservation Trusts
Royal Institute of British Architects - a mine of information, some of it relating to historic houses and architecture.
Historic Scotland
National Trust for Scotland
Royal Commission on the Ancient and Historical Monuments of Scotland
Scottish Vernacular Buildings Working Group
Society for the Protection of Ancient Buildings
Suffolk Historic Buildings Group
Vernacular Architecture Group, the national body for research into historic vernacular buildings of all kinds.
Campaign for the Protection of Rural Wales
RACHM Website focusing on the vernacular architecture of Wales.
Wealden Buildings Study Group works primarily in the Weald of Sussex and parts of Surrey, Kent and Hampshire. Members include professional/amateur archaeologists, historians, architects, surveyors and geographers. They welcome enquiries from householders who would like to consider a visit. Report is confidential and free. Member of VAG.
Weald and Downland Open Air Museum – perhaps the best collection of reconstructed, conserved historic buildings in England, including Bayleaf House, a wonderful 15th century open hall Wealden building.
Yorkshire Vernacular Buildings Study Group.
New Buckenham Society added in 2015 an archive of old photos and other items to their website.
Little Walsingham Local History Society
norfolk windmills - wind and water. 

Links to organisations overseas
A digital database of American Art and Architecture, including some nice photos of early American vernacular architecture. 
Archaeological and historical research at Jamestown, Virginia, USA
researching historic structures in Williamsburg, Virginia USA
Vernacular Architecture Forum publish a journal Buildings and Landscapes . VAF have a bibliography section (
Vernacular Architecture Society of South Africa 
Timber Framers Group (USA)
Local historic preservation societies in US are by the SHPO which works with governments, the public, and educational and not-for-profit organizations to raise historic preservation awareness. The ocieties focus on the preservation of buildings. Each state has its own SHPO, examples here are New York State and Maryland.
Hudson Valley vernacular architecture. Have
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