Dictionaries and encyclopedias

Allkunne
Nynorsk digital reference works. Contains among others texts about Nynorsk cultural history.

ISLEX-ordboka
Multilingual dictionary with Icelandic as a source language and Swedish, Norwegian (Bokmål and Nynorsk) and Danish as a target language. Contains approx. 50,000 entries with translations.

NAOB - Det Norske Akademis Ordbok
In Norwegian only. The national ordbokverket of Norwegian Bokmål and Riksmål from the early 1800’s to today. NAOB is based on the historical work Norsk Riksmålsordbok.

Norsk/nordisk ordboksamling 
Link catalogue of dictionary resources to/from Norwegian - both general and subject-specific online dictionaries.

Ordbog over Det norske Folkesprog (Ivar Aasen)
Norway's first descriptive dictionary based on the systematic collection of the Norwegian spoken language, written in Danish by Ivar Aasen in 1850. Available as a free e-book from Google Books.

Ordbøkene
Dictionary for Bokmål and Nynorsk words (Norwegian only, no English translations).

Ordnett
General dictionaries that translate English, German, French, Spanish and Italian words and phrases into Norwegian. In addition, you will find the service "Språkvett" with articles about language use and spelling.

Store norske leksikon
Free national encyclopaedia from the Kunnskapsforlaget.