There are 17,000 free books in the Project Gutenberg Online Book Catalog. Project Gutenberg is the first and largest single collection of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and continues to inspire the creation of eBooks and related technologies today.
http://www.gutenberg.org
This is a wonderful resource with now thousands of books in many different formats…
What more do you need?
Free ebooks fantastic, shows how much I know, this guy has been writing ebooks since ’71. I only found the net in ’98 and started my site in 2007.