It seems like blackmail/extortion ought to be the place to start here, with a side helping of child pornography in the cases of underage victims. But maybe someone here with more legal knowledge would know: What would the charge be if this was a non-web-based offense, i.e., he used a telephoto lens to take pictures of her undressing through her window and threatened to publish them unless she performed sexual acts for him? I agree that the law needs to catch up with what one can do using the interwebs, but it seems like there has to be something already on the books to cover this.
