Spotify is a streaming music service with millions of songs. You'll need to have an account there before you can use the playlists here.
If you want to add playlists from Spotify, or follow/bookmark playlists you must sign up first. We recommend connecting with Facebook to sign up. We never post anything to your Facebook.
Bookmark playlists you find interesting but are not sure want to permanently add to your Spotify account.
You can easily embed Shared Playlists and your personal playlists on your blog or site using widgets.