Salacious content driving the adoption of ebooks? | ITworld: "Barnes & Noble abandoned ebooks once, so why are they coming back to them now? Because the format is starting to take off. Why is that? What's popular on Fictionwise? Well, once again it seems like porn is blazing a path to a new media format. Of the top 10 bestsellers under the 'Multiformat' category, nine are tagged 'erotica' amd the last is 'dark fantasy'."