I am working on an ebook on the subject of pet care. I have considerable expertise with the animal. But I am wondering, when it is finished, it is better to go with Kindle Select for the lending earnings, or post on all different etailers (Diesel, Barnes and Noble, Omnilit etc) for wider exposure. I know that most fiction writers tend to better on Select but I am not sure that the same would be true for non-fiction. Also it takes several lends to earn as much as one sale.