NYC's Metropolitan Museum of Art has made a whopping 400,000 high-resolution digital images of its collection available for free download. You can browse the collection here.
In making the announcement, Mr. Campbell said: "Through this new, open-access policy, we join a growing number of museums that provide free access to images of art in the public domain. I am delighted that digital technology can open the doors to this trove of images from our encyclopedic collection."
The Metropolitan Museum's initiative-called Open Access for Scholarly Content (OASC)-provides access to images of art in its collection that the Museum believes to be in the public domain and free of other known restrictions; these images are now available for scholarly use in any media.