Every once in a while you'll stumble upon a forum or an online community that is so specific, so insane, so completely ridiculous that you are forced to conclude that you have reached the end of the Internet. Sure, you may continue on your merry clicking way, but you do so with the deep-seated feeling that there is nowhere else to look; you have seen everything the Internet could possibly hope to provide. Here are the eight online communities that killed our adventurous spirit, made us sure that we'd seen everything the online world has to offer, and even more certain that we didn't want to try to find anything more depressingly fascinating.