Nada. Free. Without Cost.
While it only works on your PC, in the Kindel world that is a start.
Free Kindle for your PC
Then, you can go to Amazon looking for free Kindel Programs (or
whatever price range or subject interests you have) at:
Free eBooks at Amazon
One of the sources of free eBooks is Project Gutenberg--36,000 free e-books
Project Gutenberg
