British Official Publications Collaborative Reader Information Service (BOPCRIS)
- Search and browse information from British Official Publications for 1801-1995. Read abstracts, and view subject indexing of key documents. Digitised full-text version available for some documents.
- http://www.bopcris.ac.uk/

Mountain Heritage Trust
- Aims to conserve and document the heritage, artefacts, history, traditions and records of the people connected with Britain's mountainous areas.
- http://www.mountain-heritage.org/

The Scottish Records Advisory Council
- A statutory body which offers advice to Ministers on matters relating to the keeping of public records in Scotland and on issues of importance to the archive community. News, meetings, members and publicastion scheme.
- http://www.scottishrecordsadvisorycouncil.info/

National Archive for the History of Computing
- Houses the UK's most important collection of documents relating to the history of computing, and encourages interest and study in the history of computing more generally.
- http://www.chstm.man.ac.uk/nahc/

National Council on Archives
- The NCA brings together the major bodies and organisations, including service providers, users, depositors and policy makers, across the UK concerned with archives and their use.
- http://www.ncaonline.org.uk/

Lambeth Palace Library
- The historic library of the archbishops of Canterbury, and the principal library and record office for the history of the Church of England.
- http://www.lambethpalacelibrary.org/

Archon
- Portal to an electronic directory of repositories holding manuscript sources for British history and Web based information on archival resources.
- http://www.archon.nationalarchives.gov.uk/archon/

Public Record Office of Northern Ireland
- PRONI is the official place of deposit for public records in Northern Ireland. Includes location, visitor information, virtual tour, publications and indexes to records held.
- http://www.proni.gov.uk/

Scottish Archive Network
- Provides access to many valuable resources for those interested in Scottish history.
- http://www.scan.org.uk/

Archives Network Wales
- An online searchable catalogue of document collections in record offices, universities, museums and libraries in Wales.
- http://www.archivesnetworkwales.info/

Archives Hub
- A major national gateway to archive collections held in UK universities and colleges, forming part of the National Archives Network.
- http://www.archiveshub.ac.uk/

Access to Archives
- A2A database contains catalogues of archives held across England and dating from the 900s to the present day.
- http://www.a2a.org.uk/

Bethlem Royal Hospital Archives and Museum
- Archives of the London institution founded in 1247 as a priory, but which has been for most of its history a hospital for people with mental illness.
- http://www.bethlemheritage.org.uk/

Scottish Records Association
- A forum for users, owners and custodians of Scottish historical records; the provider of conferences, training events and publications about Scottish history and archives.
- http://www.scottishrecordsassociation.org/

Archival Research Techniques and Skills
- Nick Barratt explains offers guidance and advice on using archives in the UK. He also offers university teaching and tours of the Public Record Office.
- http://www.arts-scheme.co.uk/

The National Archives
- Promotes and manages the UK's archival collections. Details of collections and services, information for visitors, and an online search.
- http://www.nationalarchives.gov.uk/

British Library Manuscripts Collections
- The national repository of manuscripts and private papers and archives. They contain material of outstanding research importance for all periods, countries and disciplines. Online catalogue.
- http://www.bl.uk/collections/manuscripts.html

The National Archives of Scotland
- Holds records spanning the 12th to the 21st centuries, touching on virtually every aspect of Scottish life.
- http://www.nas.gov.uk/