Sources
Trade unions
- Akademikerne
- Landsorganisasjonen (Norwegian Confederation of Trade Unions)
- Mediebedriftenes landsforening (Norwegian Media Businesses' Association)
- Norsk Journalistlag, NJ (Norwegian Union of Journalists)
- UNIO
- Yrkesorganisasjonenes sentralforbund (YS)
Journalists associations
- Norsk Journalistlag (Norwegian Union of Journalists)
News agencies
- Avisenes nyhetsbyrå (ANB)
- Norsk Telegrambyrå (NTB)
Audience measuring organisations
- Ipsos
- Kantar TNS (Gallup)
- Medienorge (Statistical information about the Norwegian media system)
- Norwegian media barometer 2015 (Statistics Norway)
- Statistisk sentralbyrå (Statistics Norway)