Kobo Audiobooks - Experience the joy of being told a story
Magic Playlist - Get the playlist of your dreams based on a song
Scribd Audiobooks - Unlimited access to 30,000 audiobooks
Spotalike - Spotify playlist with similar songs, according to Last.fm
Prologue - Audiobook player on iOS for Audiobooks hosted on a Plex media server
Playlist Machinery - Tools that help you create & organize your Spotify playlists