Amazon KDP Select Exclusion
For everyone familiar with Amazon ebook self-publishing, they're probably aware of Amazon KDP Select. The primary advantage to this for authors and publishers is that for a period of 5 days out of every 3 months, books enrolled in KDP Select can be made free.
The first time I did this, for my novel, THE DEVIL'S PITCHFORK, I had well over 8000 downloads in a 24-hour period. It totally drove all my other sales. Since Pitchfork is the first in my Derek Stillwater series, all is good.
I've made Pitchfork free periodically and generally speaking it gooses my overall sales, although not to stratospheric numbers. Free downloads have never been as high as the first time, either. I recently did it for 5 days straight as a way of boosting some interesting in my latest Derek Stillwater novella, GRAVEDIGGER. In 5 days straight I gave away a little over 2000 copies of Pitchfork. Sales have been decent since, a definite bump, so it does work.
The catch, of course, is that I can't offer Pitchfork for sale anywhere else - specifically through Barnes & Noble or Smashwords - while it is enrolled in KDP Select.
I don't much like that. Kindle sales account for probably 95% of my sales overall, and Smashwords accounts for almost nothing (same with Kobo, iBooks and Sony), but Nook sales are money, and although I suppose the boost on Kindle sales is worth shutting out a portion of the Nook funds, I don't like the idea of shutting out the Nook readers.
But I do it anyway for some of my books because, well, Amazon makes me money and allows me to apply fairly basic retail principles to selling books - something that I find most publishers don't do.