Four years ago, just before I joined Google, I wrote “The Art Ecosystem and the Digital Museum” on this blog.
At Google I worked to promote the digital museum concept and found a number of similarly motivated folks. A team in Europe had worked with the Prado to put a number of the masterpieces from that museum online in a dramatic way with tremendously high resolution images. Others turned up from around Google and joined in. [By the way, you can look at the fourteen Prado pictures in amazingly high resolution using Google Earth. Just turn on 3D buildings in Earth and then navigate to the Prado and you'll get a popup for the images.]