Sure, there is innovation in the technology, and adult themed sites to their credit have driven a lot of tech change including arguably the internet itself. But

Sure, there is innovation in the technology, and adult themed sites to their credit have driven a lot of tech change including arguably the internet itself. But I'm talking about innovation in the space of adult themed web sites. Can you name a single adult themed web site whose approach is innovative for it's target market? (not just the tech)