Copyright Helps

General Copyright Information: Copyright For The Rest Of Us: A Guide For People Who Aren’t Lawyers by Marsha Keyser. An open source guide to copyright designed with laypeople in mind.
Public Domain information: Copyright Term and Public Domain in the United States from Cornell's Copyright Information Center
Public Domain: Search for copyright information: From the U.S. Copyright Office (records after 1978); From the Internet Archive: records of copyright ownership from the United States Copyright Office for the period from July 1891 through December 1977.; From Stanford's Copyright Renewal Database: "compiles all US Class A (book) renewal registrations for works published between 1923 and 1963. These renewals were received by the US Copyright Office between 1950 and 1993."; From University of Pennsylvania's Online Books Page "Information about The Catalog of Copyright Entries"; From Google's scans of The Catalog of Copyright Entries
Fair Use Helps: Fair Use Evaluator developed by ALA’s Office for Information Technology.; Fair Use of Copyrighted Materials from Copyright Crash Course, University of Texas Libraries; Fair Use Checklist from Columbia University Libraries
TEACH Act Helps: The TEACH Act from Copyright Crash Course, University of Texas Libraries
Instructor-Specific Help: Exceptions for Instructors in U.S. Copyright Law developed by the ALA Office of Information Technology