Magic Playlist - Get the playlist of your dreams based on a song
Rebrandly - Rebrandly is the easiest way to create, share and manage branded links.
Spotalike - Spotify playlist with similar songs, according to Last.fm
WhatsApp Share Link Generator - A handy tool to generate WhatsApp sharing links.
Playlist Machinery - Tools that help you create & organize your Spotify playlists
POINT - Awesome link sharing/commenting with friends.