Reference Online

General interest

ARTstor Digital images library for education and research 
Bridgeman Art Library Over 380,000 images from museums, galleries,etc. Copyright cleared for educational use.
Times Digital Archive The Times Digital Archive, 1785–2006. Full-text searchable.
Gale NewsVault to cross-search with the Picture Post Historical Archive or the Times Literary Supplement Historical Archive.
Periodicals Index Online Index to articles published in over 6,000 periodicals, covering the humanities and social sciences; Articles cross-linked with JSTOR for full-text access