Blinkist - Key insights from 6,000+ bestselling books and podcasts
Goodreads - See what your friends are reading.
Instaread - Read or hear key takeaways of any book in minutes
LibraryThing - A home for your books.
Sipreads - Takeaways from the best books, for free 📕⚡
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes