What is a fanlisting?
A fanlisting is a place for all the fans of a particular show, movie, actor/actress, singer, etc. to come together and build the biggest listing of people all around the world who are fans of that subject. (Description taken from TheFanlistings.org)

In this case, this is the place for all the fans of "Colorblind" by the Counting Crows to proclaim their love for the song. If you are a fan, go read the rules and then join!