The following websites also offer online access to catalogues of historical records relating to Cambridgeshire and Huntingdonshire:
Cambridgeshire Libraries' online catalogue of books and other printed materials is available here. It includes the catalogue of Cambridgeshire's local studies collections.
Janus is the online catalogue of records held by the University and Colleges of Cambridge.
The ARCHON Directory provides contact details for archive services in the United Kingdom.
The National Register of Archives provides information about the nature and location of archives and manuscripts relating to British history.
The A2A database contains catalogues describing archive collections held by archive services in England and Wales, dating from the eighth century to the present day.