You don't know what a fanlisting is?
Well, according to The Fanlistings Network (which is where all approved fanlistings are listed), "a fanlisting is simply an online list of fans of a subject, such as a TV show, actor, or musician, that is created by an individual and open for fans from around the world to join. There are no costs, and the only requirements to join a fanlisting are your name and country. Fanlistings do not have to be large sites (although some are); they are just a place where you can sign up with other fans."
I hope you get it now. :) If not, visit TheFanlistings.org for more information.