The US Copyright office provides documentation and information copyright law, along with forms for registering copyright and other useful information. Sections of interest:
These websites are different in their outlook and may represent the views of commercial entities.
Copyright and Art Issues Copyright Information collected by Christine L. Sundt of the University of Oregon.
There are many videos available at Copyright Clearance Center. https://www.copyright.com/learn/resource-library/
U.S. Copyright Office of the Library of Congress
U.S. Patent and Trademark Office of the Commerce Department
American Association of Law Libraries
American Communication Association
Association of American Publisher
ACM Association for Computing Machinery
Association of Research Libraries
The Authors Registry – Authors Contact Directory, Registry Licensing Service, Automated Rights Payment System
Business Software Alliance (BSA)
Broadcast Music Incorporated (BMI)
Coalition for Networked Information (CNI)
Copyright Clearance Center (CCC)
The Corporation for National Research Initiatives
Intellectual Property: An Association of Research Libraries Statement of Principles
Motion Picture Licensing Corporation (MPLC)
The National Association of College Stores, Inc. and The Association of American Publishers
Society of American Archivists
Visual Resource Association a non-profit organization established to further research and education in the field of visual resources and to promote a spirit of cooperation among the members of the profession. Site includes resources on copyright and fair use.
Copyright Crash Course University of Texas Austin
Budapest Open Access Initiative
Changes in Laws Governing Protection of IP Rights Around World – by Ladas & Parry
Conservation Online – Resources for Conservation Professionals, Stanford University Libraries
Copyright Basics from Library of Congress
Computer Professionals for Social Responsibility (CPSR) Intellectual Property Page
Cornell Law School Legal Information Institute at Cornell Law School
European Commission‘s Copyright site
Law in the Information Society Links and articles from Duke University Law School Professor James Boyle
LibLicense From the Yale University Library information and forms for licensing digital materials.
Lotus v. Borland analysis and briefs from Jesse Feder