GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.
Kooba - An interactive graph for finding new books
Goodreads - See what your friends are reading.
Read This Twice - Verified book recommendations from people we look up to
Bookcelerator - A curated directory of books that will make you smarter