Archive sector development at the National Archives
Archives and Records Association Section for Specialist Repositories
British Records Association
Historic Houses Association
Information Commissioners Office – a useful resource for information on GDPR legislation.
Institute for the study of Welsh Estates – based at Bangor University and dedicated to promoting research into the history, impact and functioning of estates on a Wales-wide basis.
Yorkshire Country House Partnership – run primarily through Castle Howard and the University of York, this site features useful downloads for researchers plus links to projects.