Noreen A.: Altnordische Grammatik (html) - marked by Andrea de Leeuw van Weenen.

Septentrionalia   - Old Norse texts a.o.

Heimskringla  - Old Norse texts a.o.

Saganet in Cornell

NB-Digital  Norwegian digital books

Internet Archive

Google Books

World Cat - Union Catalogue of libraries world wide with links on digital books

Gallica - Old French books and manuscripts in Bibliotheque National.