I've found a few books I'm looking for at the Open Library (part of the Internet Archive,) and I saw that the books are 'returned' automatically after two weeks. Does anyone know how to keep those books, or share them (say, with other Mobilism readers?)
I had success removing DRM on an epub I got from there, but the software only works for so long before you have to buy it.
If you don't want to buy it, it looks easy enough to find cracked versions online. I'd share links, but I'm new here and not sure the rules on posting links to that sort of stuff.
Edit: Actually, ignore all that. I just found a plugin for Calibre that handles this. You'll want the Inept Epub DeDRM plugin. I just shared an Open Library borrowed book out of my Calibre Library with my wife and she had no issues opening it.