DiskyT - Youtube playlists done right
Audioship - Upload audio to YouTube or Facebook
OrganizeTube - Create video playlists from Youtube, Vimeo and other sources
Tovid.io - Upload mp3 to YouTube: image and audio are rendered to video and published to your channel.
Tuned Rocks📺 - Discover🔎 curated Youtube videos 24/7
TunesToTube - What does TunesToTube do?