Amazon has bought book-based social-networking site Goodreads for an undisclosed amount. The retail giant is expected to use Goodreads, which currently has more than 16 million members, as a platform for …" /> Amazon has bought book-based social-networking site Goodreads for an undisclosed amount. The retail giant is expected to use Goodreads, which currently has more than 16 million members, as a platform for …" /> Amazon has bought book-based social-networking site Goodreads for an undisclosed amount. The retail giant is expected to use Goodreads, which currently has more than 16 million members, as a platform for …" />