Quotes About Copyleft

While most software is copyrighted and closed, Cafelog had different rules. It did not have a copyright. Instead it had something called an open source license, or a copyleft.

I'd used open source software before when studying computer science in college, including countless caffeinated hours writing code in EMACS, a brilliant editing program made by Richard Stallman (who coined the term copyleft). I used other tools that were open, or free, or in the public domain, but that was rarely the reason I chose them.