Another milestone for the largest book-focused social network: Goodreads has hit the 20 million user mark, the company’s founder Otis Chandler announced today on the company blog. That’s up from about 10 million users eleven months ago.
In the wake of Goodreads’ sale to Amazon, some of the site’s competitors have moved to try and fill a perceived void in the competitive set — readers who want to engage with other readers online socially but not with Amazon. BookLikes, a new social reading platform, was launched. The Reading Room, a site like Goodreads but much smaller with fewer than 1 million users, has added a bookstore. And Slice Bookshelf and Bookvibe were both recently launched to challenge Goodreads.