I use the Bookshelves feature via the website, and the last few days, when I go to search for a book I’ve finished to add to a shelf, the book search returns nothing. I’ve searched for some pretty broad topics/titles, and never get a response.
I’m looking into this. In the past, we’ve sometimes had temporary limits imposed by Google Books, and then it’ll start working again. This seems more widespread.
This appears to be rate-limiting by Google. Search is working again for me today. We have also tried using Open Library for search, so I’m going to see if we can use that more as a fallback. Unfortunately the catalog is just not as complete.