More Free Books

General

Adelaide University eBooks (download ePub or read online)
Alex Catalogue of Electronic Texts (read online)
Baen Books (read free online, purchase downloads)
Bartleby.com (read online)
Bibliomania.com  (read online)
 
Book Lending (free registration required)
Bookshelf (read online) 
BookYards.com  (pdf download)
Classic Reader  (read online)
Digital Book Index (read online)
eBookLobby (read online)
Ellora’s Cave (offers free downloads of some of their titles – free registration required)
FeedBooks  (ePub)
FreeBookSpot (free audio books, free ebooks in pdf)
Free e-books (free pdf)
FullBooks.com (read online)
GetFreeBooks.com  (read online)
Girlebooks (some free books in various formats, including ePub, Kindle and pdf)
Globusz (read online)
Munseys (various formats, including ePub, Kindle and pdf)
NCBI E-books (read online)
Online Library of Liberty (read online or download pdf)
Wikibooks (read online or download pdf)

Kindle

FreeKindleBooks.org
4,600 Public Domain Books (Kindle books available directly from Amazon.com)
Ebook Exchange (lendme borrowing books)
"Best Sites for Free Kindle e-Books" site

Free books for your Kindle
Jungle-search.com (updated twice daily with free books for Kindle)
Lendle
(lend and borrow Kindle books)
 

Sony eReader

Sony Reader Store Free eBooks

Textbook Collections

Open Textbooks
Community College Open Textbook Collection
Connexions
OER Commons
MERLOT
Open Education
http://bookboon.com/us
California Free Digital Textbook Initiative FlexBooks for K-12 (pdf download)
Open Textbook Catalog FROM StudentPIRGs
Orange Grove Open Textbooks from University Press of Florida

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