There's a new audio subproject of
Project Gutenberg called
Radio Gutenberg.
This new audio site currently has almost 400 free audio book titles available. Most are read by computer, which can be an interesting experience all by itself, but there are also 8 human read titles by Arthur Conan Doyle provided by
AudioBooksForFree. "[Radio] Gutenberg makes audio eBooks available for some of the same great literature available in plain text."
Our thanks to
PDA 24/7 for this discovery.