Goodreads - See what your friends are reading.
100 Million Books - Discover books every time you open a new Chrome tab.
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.
Bookshop UK - Support local bookshops
Bookcelerator - A curated directory of books that will make you smarter
Booknshelf - Social book and bookshelf discovery platform.