With Demonoid down, I am looking for site with a largest collection of audio books. I know about theaudiobooksbay and abtorrents (not a member of the abtorrents need invitation).
published 6 days ago : 116 Places For Free Audio Books Online !!!! http://www.techsupportalert.com/free-books-audio
let's go 2012 Audiobooks.com Launches a Spotify for Books http://mashable.com/2012/01/24/audiobooks-com/
sorry did't it got posted already so therefore a new link http://lifehacker.com/5486514/score-free-audiobooks-at-booksshouldbefree
this is from 2010 but from makeuseof.com check it out http://www.makeuseof.com/tag/easy-listening-pleasures-10-websites-free-audio-book-downloads/
Check out this MUO article http://www.makeuseof.com/tag/easy-listening-pleasures-10-websites-free-audio-book-downloads/