If you haven't posted your mix yet, you have the rest of the day to get it done.
I've started an open "Groupthink Mix Tape Playlist" here in Spotify and added any Spotify playlists that included a direct link (non embeded). If you'd like to add your choices to the big playlist you can do it here: The Great Groupthink Playlist, No. 1 . It's an open, collaborative playlist.