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