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Kobo ereaders are integrating with Goodreads alternative StoryGraph
(www.engadget.com)
This is a most excellent place for technology news and articles.
If an author is Amazon exclusive I don't feel bad getting the book from other sources, and just put it on my Kobo.
If I want to support them, I will buy the book either as a physical book or on Amazon, and read the otherly-acquired book on my Kobo anyway.