no idea. I have had an ebook store for 2 years now and made a whooping ZERO sales, lol.
However, I do have over 100 ebooks, and I'm dying to know how to make money with them. Some of them are pretty good ebooks, too, acquired while I've been a member of Niche Revolution. I love those ebooks, I've stocked up on 2 years worth of them 10 years ago, and even today I still look at their graphics and content and am so impressed with how quality both the content and the ecovers are, so I should normally be breaking the bank with them, but I guess I'm a lousy marketer