Public Domain Materials

Project Gutenberg
6000+ full-text electronic books mostly in the public domain.

Project Gutenberg Audio Books
Human-read and computer-generated audio books in the public domain.

Hathi Trust Digital Library

Digitized collections of some of the nation’s great research libraries available for all.

Online Books Page
25,00 free books on the web.

LibriVox
Recorded books in the public domain.

Public Domain Music
Lists of public domain music.

Musopen
Recorded public domain music.

Wikipedia's Public Domain Image Resources

List of individual sites offering public domain images of flags, postage stamps, historic periods, art, etc.