Literal - Track your reading and discover your next favourite book
GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
Bookling - Track your reading habits and set goals
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes
Readup - Track and improve your online reading habits.
Most Recommended Books - Books recommended by the world's most successful people