Buying all the trashy novels I'm too embarrassed to buy because of the cover art. Oiled up Chests FTW!
Let's take that last one with a grain of salt, shall we? But I do honestly believe that the success of the ebook is being fueled by the romance and erotic romance market. My aforementioned author friend, Samantha Lucas, sells almost all of her novels in ebook format for publishers like Cobblestone Press and Siren Publishing (google Ms. Lucas or the publishers if interested; links not really appropriate for ITWorld!) and tells me the market is growing in leaps and bounds.
It'd be fascinating to learn what percentage of Kindle book sales fall into this category, and I'm looking forward to seeing how much of the more explicit Fictionwise content makes it onto the Barnes & Noble site.
I've danced around this point but let me just say it: most of these erotic romance books are purchased by women (presumably) while most of the visual pornagraphy that drove the success of the VHS and arguably video on the web was consumed by men (again, presumably).
Separate but equal, indeed.