I use highlights on Kindle and then Clipping.io to manage those. Laura Gibbs put me on to that and it works well when I need to go back to books. Now the Kindle highlights are ‘updated’ they also do not work so well so having a backup is helping me.
I am even considering ditching the kindle and going back to (dare I say it) paper!! There is research that shows that recall is not as good when reading digitally. Personal Experience says: I only remember to discuss detail books that I read on paper, Kindle books? I remember my highlights! Because I engaged with them.
Just some random thoughts about reading. Never tried Good Reads but I am not keen on sharing my reading with others – it is an alone activity I cherish 🙂