I should probably also mention that I tried Smashwords, and bought several books from there, but it's just too difficult to sort out the wheat from the chaff. At least IMHO.
I think the industry needs to focus more on selling books. At the library, it is so much easier to find the books I want, and they have links to similar books, etc. I can't find this at an ebook store. Well, I guess I could if I had a Kindle, but I really wanted the ability to shop in more than one place for a book. (Which subsequently backfired on me, when all the books started to come out at the same price!)