Spotify - Map shows when two people play same song at same time
Noon Pacific - The week’s best music handpicked & delivered to your devices
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Songstack - Swipe to discover new music for Spotify
Magic Playlist - Get the playlist of your dreams based on a song
BandNext - Discover bands that sound similar to artists you already love with BandNext. A single click saves your results to a Youtube playlist.