"My question was focused on the erotica/erotic romance e-publishing industry. I specifically had in mind publishers such as Phaze, Ellora's Cave, and Freya's Bower. "
Why do I have the feeling I'm on a romance forum? :)
Erotic romance and erotica are two different genres, with different reader demographics, though an increasing number of erotica presses are being started by people in the romance industry and are aimed specifically at women. Phaze, Ellora's Cave, and Freya's Bower are all presses that sprang up within the genre romance community.
There also exist erotica publishers that *aren't* romance-based. The fact that I can't think of any off the top of my head is a sign of how the romance presses have taken over :), but here's an example of a
non-romance erotica e-zine aimed at both male and female readers. And here's a
fiction and erotica e-zine aimed at male readers, though it has plenty of female readers too. If you compare their blurbs and art to the blurbs and art at
Freya's Bower, you'll immediately see the difference.