It's not a horror story.
A while ago, I set about writing an essay/blog post about the ways I think self-published e-books are changing not just the business of publishing but the nature of published fiction. It's the latter part that I think is important and long-lasting.
The essay grew and grew. I ended up publishing it as a shortish (okay, short) e-book. Which seems appropriate to me, given the subject matter. That's an experiment for me. Everything else I've published as an e-book was standard book length. Short e-books at even lower prices than standard-length e-books seem to be popping up more and more. That's an interesting development in itself, I think.
Details here: http://www.dvorkin.com/stifle/