The Wellcome Library: Archives and Manuscripts - This is the most important specialist manuscript and archival collection in Britain for the history of medicine. Description of the collection and access to it. - http://library.wellcome.ac.uk/archmss.html
National Archives: Hospital Records Database - This database provides information on the existence and location of the records of hospitals in the UK. - http://www.nationalarchives.gov.uk/hospitalrecords/
Lothian Health Services Archive - A repository for institutional administrative and clinical records, private papers, photographs and objects relating to the past and present of Lothian health. - http://www.lhsa.lib.ed.ac.uk/
Kingston General Hospital Archive - Records held by this Canadian hospital, starting in 1832. Procedures for accessing records, and selected collection strengths. - http://www.kgh.on.ca/armap/welcome_KGH_archive.asp
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/