Google Art Project Part of Google's Cultural Institute, the Art Project contains more than 40,000 high-resolution images of art works contributed by museums from over 40 countries. You can explore intereriors of landmarks such as the Palace of Versailles, and you can build you own virtual art gallery.
Getty Open Content Program
The Getty Open Content Program makes available, without charge, all available digital images to which the Getty holds the rights or that are in the public domain to be used for any purpose. The Getty adopted the Open Content Program so that anyone can have access to images of works of art for their studies and projects.
Smarthistory.org is a free multi-media web-book designed as a dynamic enhancement (or even substitute) for the traditional art history textbook. Browse by Time, style, artist or theme to discover audio and video discussion of art.