Art Canada Institute Online Books. E-books on Canadian art.
Art Resources from the Mid-20th Century: Digitized Highlights from the Collections of Hilla Rebay and Juliana Force. Collaborative project on the Internet Archive, by the Solomon R. Guggenheim Museum and the Whitney Museum of American Art.
Getty Publication Virtual Library. Free access to selected Getty publications.
Metropolitan Museum of Art publications: full text online books.
Historical trade catalogs from the Winterthur Museum Library on the Internet Archive.
World Digital Library. Free access to "significant primary materials from countries and cultures around the world."