Libraries and individuals have been busy digitizing and creating collections of materials that are in the Public Domain. Here are some prominent collections that may spark new research and interest:
- Digital Public Library of America: Access to public domain materials hosted by a variety of libraries
- Europeana: digital resources of European museums, libraries, archives, and audiovisual collections
- Internet Archive: Access to public domain materials hosted by a variety of libraries and individual uploaders
- LibriVox: online audiobooks from the public domain