Ten of the world's strangest social networks

If you crave advice on sculpting the perfect mustache, revel in the dark and mysterious world of vampires or seek a divorce from your partner, yes, there's a social network for that. Here are 10 weird and truly niche social networking sites that strive to bring together some unusual birds of a feather.

StachePassions.com

Tom Selleck, no doubt, would be a fan. StachePassions.com is a social networking site for those fond of flavor savers. You can browse Mustache Groups to find members by their preferred 'stache style, including the Dali, Walrus and Pencil, or by their experience level: newbie, expert or Stache Groupie. Also featured on the site: "Stache chat," message boards and e-mail. Gilette is definitely not a sponsor.

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