I'm looking to access digitized archival material from the Norsk Folkemuseum. What are the two main external portals available for this purpose, and what kind of material or access does each portal offer according to the museum's website?
Navigate to 'norskfolkemuseum.no'. Click on 'Våre samlinger' (Our collections). Click on 'Arkiv' (Archive). Identify the sections related to digital access for archival material. Extract the names of the two main external portals for digitized archival material. Describe the purpose or content associated with each identified portal based on the text on the page.
Successfully navigate to the 'Arkiv' page. Identify 'Arkivportalen' as one of the external portals. Identify 'Digitalarkivet' as the other external portal. State that 'Arkivportalen' provides access to 'Norsk Folkemuseums arkiver' (Norsk Folkemuseum's archives). State that 'Digitalarkivet' allows users to 'Les digitalisert arkivmateriale' (Read digitized archival material).