National Archives of Norway
- Information about the Norwegian State Archives System, covering the national and the regional archives. The archives holds documents back to the Middle Ages and from the union with Denmark up to 1814. The newer archives come from central administrative of
- http://www.riksarkivet.no/english/about.html

The Norwegian Historical Data Centre
- National institution working to computerize the Norwegian censuses 1865 onwards together with the parish registers and other sources from the 18th and 19th centuries. NDHC is a centre at the University of Tromsø.
- http://www.rhd.uit.no/indexeng.html