Playlist Machinery - Tools that help you create & organize your Spotify playlists
PartyWith - Connecting people who love to party - anytime, anywhere.
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Magic Playlist - Get the playlist of your dreams based on a song
MisterJack - Make and share playlists