By Derek Haines on Just Publishing Advice:
There is no right or wrong way when it comes to deciding on which book and ebook retailers you are going to select.
Your aim is to leverage the best possible routes to potential book sales for your titles.
There are many online book retailer choices available, but when it comes to ebooks, there are a few decisions you will need to make initially.
The first is to decide if you only want unit sales, or do you also want to offer your ebooks to subscriptions services?
Note that ebook subscription services usually pay a much lower royalty than for ebook unit sales.
The second decision is whether you a willing to accept Amazon exclusivity, or do you want to remain totally independent?
In other words, do you want your ebooks available on many ebook retailers, or only on Amazon Kindle.
To make these decisions, you need to understand what online retailers can offer you, and more importantly, what they demand from you.
The details below of the major online book and ebook retailers will give you a brief outline before you do your own research.