The site is first introduced in the episode The Bracket of season 3, where Barney is going to apologize to Anna, but instead continues to pretend he is Ted, telling every woman there to stay away from Ted Mosby and lock up their sisters and mothers. The real site also contains a 20 minute song performed by Charlene Amoia (who plays Wendy the Waitress), as Anna. A link to the real site can be found here.