According to The Fanlisting Network a fanlisting is a place for all fans of a particular show, movie, actor, actress, singer, etc. to come together and build the biggest listing of people from all around the world who are fans of that subject.
First of all, even if you are not a newbie you should read the fanlisting rules. This is a clever way to avoid problems in the future. Then, you can apply the join form and if you have registered with a website you have to put a code or a text link linking back this site.