Tubufy is a hobby project of mine with the goal of easily converting Spotify playlists to Youtube powered music video channels. The motiviation is really that there are so many good music videos being made (and has been made) that are somehow forgotten in this day and age. This will hopefully bring a little bit more of visibility to this art form!
Technically Tubufy is a medley of jquery/node.js/php/libspotify mostly playing in harmony.
A clickable example: http://tubufy.com/spotify:album:5SDdZXG7vS9zFcTNkC0P9g