I've found the opposite approach to be more useful: elimination, selectivity, and focus. For example: Read only the best books, take notes on them, and absorb them fully. Book lists are good, but they tend to grow unbounded and promote anxiety. It's not difficult to get to a book list of 300-500. Once you're there, there's little reason to update it often. The focus should instead become chewing through the list you'…
i don’t use bookmarks anymore it’s just too stressful trying to keep them updated, almost a full time job he! if I don’t read it in that moment it’s gone for good.
I use Evernote for temporary stuff but then it’s gone too after I’m finished with it or uploaded to a gist.
books in kindle are cleaned regularly too