Spotify Artists - Spotify's site for artists
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Indie Boost - A video game discovery software used by Publishers, Press, YouTubers, and Streamers.
Muzei - Muzei is a live wallpaper that gently refreshes your home screen each day with famous works of art.
Level Music - A new platform for independent artists, everywhere. In beta.
Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.