free and freedom

Project Gutenberg says:
"The word free in the English language does not distinguish between free of charge and freedom.
Free of charge means that you don't have to pay for the book you received.
Freedom denotes that you may do as you like with the book you received. ...Fortunately almost all Project Gutenberg ebooks are free of charge and free as in freedom."

And the really good news is that Project Gutenberg has a collection of audio books in its collection. Either human read or computer generated.

So choose between Edward Lear, Jane Austen, Karl Marx or Aesop, load up the mp3 player and have a great weekend.