As if anyone needed another reason to love the Rijksmuseum, they recently opened 125,000 high-resolution digital images of art for copyright-free use by the public. You can browse, search, and download images from the museum's collection, and then use them for your own projects, or simply print out a high-res poster. You can also create your own pinterest-like page for others to see, and browse others' pages for ideas.
This is not only extremely generous, but totally brilliant. Brilliant, I say!