Goodreads - See what your friends are reading.

ReadUpNext - Explore and find your next good read - recommended books by influential people, handpicked by genre or curated for specific interests.

aNobii - aNobii is a social network for listing books, sharing insights, and meeting people.

BookSloth - Book Sloth lets you add books, post and see reviews as well as interact with other readers.

Booqsi - Booqsi is a modern social platform built specifically for the book community, allowing you to engage with others in a more meaningful way about books.

Read This Twice - Verified book recommendations from people we look up to