The Newberry Library has made its 1.7m images free to re-use, including commercial…

“users can share and re-use images derived from the library’s collection for any purpose without having to pay licensing or permissions fees to the Newberry. There are currently over 1.7 million Newberry digital images freely accessible online.”

Picture: Norman Rockwell, “Rosie the Riveter”, 1943. Not sure that Norman Rockwell is really public domain, but it’s nice to have in high-res.