AudioBookBinder - Got a lot of audiobooks in MP3 format and would like to listen them on your iPod?
OpenAudible - OpenAudible Project Page
Audiobook Converter - AudioBookConverter simple and lightweigh application to convert set of mp3 files to single m4b file to be played on i-device AudioBookConverter support conversion of most of popular formats to m4b, it also handle existing m4b files and process them.
TunesKit Audible AA/AAX - Audible AA/AAX Converter by TunesKit is an application that enables you to convert audible AA and AAX files to the formats that are supported by other devices.
Free Audiobooks - Free Audiobooks is a digital audiobooks library app that comes up with an extensive collection of more than 14000 different audiobooks to help you in boosting up your knowledge right at your fingertips.
TunesKit iBook Copy for Mac - Easily remove DRM protection from Apple iBooks and copy DRM protected iBooks to DRM free ePub files.