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Fanlistings?
A fanlisting is a place for all fans of a particular show, movie, actor/actress, singer... to come together and build the biggest listing of people from all around the world who are fans of that subject.
The Original Fanlistings Network lists nearly 50,000 fanlistings and has been online for the past five years. I'd suggest you go there to find the links to other fanlistings you might be interested in joining!
