Goodreads - See what your friends are reading.
Rocket Reads - A simpler alternative to Goodreads
GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
Four Hour Book Club - 300+ Books recommended on the Tim Ferriss Show 📚
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.
Bookshare - I'm giving away my books