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It might not get much coverage, but adults-only social networking is big business - market leader Adult Friend Finder, for instance, reports 20 million members. New entrant MyCircles.com isn't giving much away before its launch tomorrow, but it has announced a deal with Amore TV to promote videos, stories, and other related products to MyCircles users. They're also promoting social responsiblilty and protecting children from adult material. Will it get a review on Mashable? Nope, but it's worth mentioning these sites for the sake of completeness.
PS. Decided not to link to this one, although it's perfectly clean.
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