More Free eBooks and Digital Audiobooks

Baen Publishing
Free Science Fiction and Fantasy titles in electronic format. Read the titles online or download the books in one of several formats, including Nook and Kindle compatible formats.
Digital Public Library of America
DPLA’s collection of free eBooks on a variety of subjects.
Google Books
Search and browse books online. Download a PDF copy of public domain book. Download Google eBooks app for Android or iPhone/iPad to read Google eBooks on your phone.
HathiTrust
A large-scale collaborative repository of digital content from research libraries including content digitized via the Google Books project and Internet Archive digitization initiatives, as well as content digitized locally by libraries.
International Children’s Digital Library
A digital library of outstanding children’s books from all over the world.
Just Free Books
Searches more than 700 websites to find all sorts of free books: public domain texts, open books, free audio books, ad-supported books and more.
MetPublications
Offers 448 quality art books for free downloading (or free browsing online).
Online Books Page
Links to more than one million texts that are freely readable over the Internet.
Project Gutenberg
More than 36,000 free eBooks to download to your PC, Kindle, Android, iOS or other portable device. Choose ePub, Kindle, HTML, or simple text formats.