LibriVox - free public domain audiobooks
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
OverDrive Media Console - Download eBooks and audiobooks from your library directly to your iPhone, iPad, and iPod Touch!
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
Listen Audiobook Player - Feature rich and easy to use player for your audio books.
Quickreader - Quickreader is a book reading application for the leading smartphones that is combining the solution of two main issues of the book readers namely book reader and availability of books from the leading publication houses.