The US Library of Congress hosts a vast library of public domain images that can be used for anything you want, including commercial use. And they occasionally curate small collections from their database of over 800,000 photos, prints and drawings. The Library has built 28 themed collections of images, including a charming collection of vintage cat photos and drawings.

For the first time in twenty years, as the Atlantic points out, a whole year's worth of copyrighted works will enter the public domain in the U.S. on January 1, 2019.

Under the terms of the Sonny Bono Copyright Act, works first published in 1923 have entered the public domain, meaning anyone can re-publish them, or chop them up and use them in other projects, without asking permission or paying the old rights holders. You can record new versions of the musical compositions; you can show the movies for a profit; you can even remake them. Amazon can sell you the ebook and keep all the money, and Project Gutenberg can give you the ebook for free. The Atlantic has a short list; we have a longer one below.

The Art Institute of Chicago recently revamped its website and released a searchable database of high-resolution art. Even better, a lot of the art is in the public domain, meaning you can legally use it however you want, even for commercial purposes.

(Check the copyright notice on each artwork’s page.) You’ll notice that while you can zoom in on most of the artworks, only the public-domain art will include a full-resolution download link.

If you're looking for something interesting to watch, YouTube channel Public Domain Full Movies is full of, well, what its name implies. Classic films like A Trip to the Moon and Behind Green Lights to fun flicks like Gammera The Invincible are all here to stream, completely free, to any device.