Google Art Project is a tour of the some of the world's greatest museums. For featured artwork, you can zoom in very close to study the artist's technique! You can also take a Google Maps-style "tour" of some of these great museums.
JSTOR is a digital library for scholars, researchers, and students. It provides access to more than 12 million peer-reviewed academic journal articles, books, and primary sources in 75 disciplines. Art subjects covered include:Architecture & Architectural History, Art & Art History, Garden & Landscape, Performing Arts, Classical Studies, and Film Studies. Almost every college uses JSTOR, so get to know it now!
Reference articles on a variety of subjects, including art and art history. Search the entire collection, since many articles on art history are located in reference books in the History or Nation & World section.