LibriVox - free public domain audiobooks
Magic Playlist - Get the playlist of your dreams based on a song
Audible - Audible is the world’s largest provider of premium audiobooks and spoken word content.
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
Mobilism.org - A home for book lovers, app enthusiasts, and much more.
Playlist Machinery - Tools that help you create & organize your Spotify playlists