Playlist Machinery - Tools that help you create & organize your Spotify playlists
NOISESUPPLY - Pandora for SoundCloud
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
Tuned Rocks📺 - Discover🔎 curated Youtube videos 24/7
Magic Playlist - Get the playlist of your dreams based on a song
TubeLister - Generate a YouTube playlist from your opened tabs.