Technology Management

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Legal, Ethical and Social Considerations of Creative Commons and the Public Domain

[Table of contents]

Other Licenses (or License Releases) Related to Public Domain

Public Domain Mark

Public Domain MarkAs Creative Commons describes it, "Our Public Domain Mark enables works that are no longer restricted by copyright to be marked as such in a standard and simple way, making them easily discoverable and available to others. Many cultural heritage institutions including museums, libraries and other curators are knowledgeable about the copyright status of paintings, books and manuscripts, photographs and other works in their collections, many of which are old and no longer under copyright. The Public Domain Mark operates as a tag or a label, allowing institutions like those as well as others with such knowledge to communicate that a work is no longer restricted by copyright and can be freely used by others. The mark can also be an important source of information, allowing others to verify a work’s copyright status and learn more about the work."

Learn more at

See also the CC0 PDM comparison chart

Open Data Commons Public Domain Dedication and License (PDDL)

The PDDL places the data(base) in the public domain (waiving all rights)
Learn more at