If you're an author and you're active on Goodreads, be aware of this:
At Goodreads, we make it a priority to use book information from the most reliable and open data sources, because it helps us build the best experience for our members. To that end, we're making a major change.On January 30, Goodreads will no longer display book information that comes from Amazon.
There's more, but further down the post they do address the books published solely at Amazon:
There have been many questions about Kindle Editions and books in the KDP (Kindle Direct Publishing) program. As these editions are unique to Amazon, there are no alternative data sources. We anticipate keeping these, and will bend over backwards for all our authors who publish via Kindle to make sure their readers on Goodreads have a smooth transition.
If you're an author, it's in your best interest to make sure your books are rescued. If you're a reader, it's in your favorite authors' interest to make sure their books are rescued. Supposedly all of my titles are safe, though their covers and product descriptions have disappeared, which means I'll be very busy in the next week fixing all of that. If you're on Goodreads, be sure to click here to see any books you've read that may need saved.