Goodreads is the largest social network geared toward books and book recommendations. It has a vast community and was launched in 2007. The service has constantly been refined ever since. Amazon purchased Goodreads in 2013 for $150 million and eventually incorporated it into Kindle. Users can easily sync their Goodreads and Amazon accounts, share reviews and books that are … [Read more...] about How important is Goodreads on the Amazon Kindle?