• Classicreader.com -- Registration required to download books, can read for free.

• Free Christian Educational Resources
• Free Audio Books -- Books that are downloadable in audio format. These guys appear to just be starting up, as the list of titles is small, but growing!
• Internet History Sourcebook -- The focus here is on historical texts.
• Online Books Page -- Digital library at the University of Pennsylvania.
• The Literature Network -- Includes a discussion forum.
• Read Book Online -- Some pages at this site are displayed strangely in Firefox, but the books are still accessible.
• Ebooks at Mises.org -- The focus here is on economics and liberty.
• The Constitution Society -- There are many references at this site to our founding documents, as well as ebooks and other resources.

http://en.wikibooks.org/wiki/Main_Page

I found a large collection of eBooks for PDAs (Palm and PPC) at MemoWare. I am looking forward to browsing this site.

http://librivox.org/

Just discovered this site -- a growing collection of literary classics, completely volunteer-driven.

I happened to run across this link recently. John Taylor Gatto's seminal work, The Underground History of American Education, has been made available online. Gatto is a former award-winning public school teacher, and this book exposes the truth about the agendas that have driven this system since its inception. It is a must-read for all parents.

Note that I am not sure if this is a permanent posting, or if it will only be up for a limited time, so take advantage while you can!

http://books.google.com/