Center for the Study of the Public Domain, Duke Law School
The Center's mission "is to promote research and scholarship on the contributions of the public domain to speech, culture, science and innovation, to promote debate about the balance needed in our intellectual property system and to translate academic research into public policy solutions."
Copyright Clearance Center
A global rights broker used to obtain copyright permissions.
Creative Commons
A nonprofit that "enables the sharing and use of creativity and knowledge through free legal tools."
Primary Sources on Copyright (1450-1900)
A digital archive of cases, laws, and commentaries from France, Germany, Italy, Spain, the United Kingdom, and the United States.
U.S. Patent & Trademark Office
Official site for the federal government agency that oversees granting of patents and registration of trademarks.