The following Web sites provide sample addenda and suggested amendments to publishers' copyright agreements. The purpose of the addenda is to ensure that authors retain certain rights to their works. These Web sites do not substitute for legal advice.

Author Addenda and Retaining Key Rights

SPARC Author Addendum
SPARC

SPARC Canadian Author Addendum
SPARC

Science Commons Scholar's Copyright Addendum Engine
Science Commons

MIT Copyright Amendment
Massachusetts Institute of Technology

Copyright at the University of Michigan: Author’s Addendum
University of Michigan

University of California Amendment to Publication Agreement
University of California

Reserving Rights of Use in Works Submitted for Publication: Negotiating Publishing Agreements
Copyright Management Center,Indiana University, Purdue University at Indianapolis

You and Your Copyrights: Securing, Managing, and Sharing the Legal Rights
Copyright Management Center,Indiana University, Purdue University at Indianapolis

OhioLINK Library Community Recommendations on Retention of Intellectual Property Rights

Washington University Amendment to Publication Agreement
Washington University

Recommended Language for Manuscript Contracts
University of Kansas

Scholarly Communication: Knowledge Without Bounds: Author's Tools
Johns Hopkins University

NIH Publishing Agreement & Manuscript Cover Sheet
National Institutes of Health

SHERPA RoMEO: Publisher Copyright Policies & Self-Archiving
Information about open-access and self-archiving policies of publishers.

SHERPA/RoMEO: Publishers allowing the deposition of their published version/PDF in Institutional Repositories

Creative Commons
Creative Commons is devoted to building a layer of reasonable, flexible copyright. This link leads to a Web application that helps creators retain their copyright eventhough they might license works as free for certain uses.