Ancient Monuments Society
Avoncroft Museum of Historic Buildings.
Buckinghamshire Archaeological Society Historic Buildings Group
Building Archaeology Research Database (BARD)

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 Monument