Shared Playlists is a free website for sharing and discovering public Spotify playlists. Everyone can sign up and submit their own playlists as well as bookmark playlists they find interesting.
There are more than 160000 Spotify playlists in all kinds of genres and time periods.
Martin Moen Wulffeld started this back in 2010 and is still responsible for every facet of the site. If you want to get in contact for whatever reason please use the contact page.