I'm sure when Dolly the Sheep was born no one saw this as the future of cloning!
Two Of Her has one great strength - it's like nothing I've ever seen before. This is a site dedicated to the concept of Clone Sex with cartoons, fakes, stories and photo manipulations of girls having sex with themselves. No, I don't mean masturbating, I mean actually having sex with a double of themselves. Confusing? yes. Different? Most certainly.
Unfortunately the site's awkward frames and design make it difficult to navigate or to enjoy fully and the quality of content varies considerably. Some fuller archives and more frequent updates would help the site greatly. On the plus side, the stories are a good touch (although converting them from text files into HTML would be a good move) and there's a great reference section which lists all the instances of clones, evil twins, android doubles and impostors in the media that you will ever need!
A month's membership comes at the nominal fee of $10/£6 per month and while this is a site that may only appeal to a small audience it's certainly got something that a lot of sites lack - originality, by the bucketload!
One word of warning right from the outset - turn your speaker volume down before the nice Anime lady makes you jump out of your skin and alerts the entire household to the fact that you're browsing hentai!