https://qooah.com/2012/02/20/%e5%b9%b3%e6%9d%bf%e5%83%b9%e6%a0%bc%e6%88%b0%e7%b9%bc%e7%ba%8c%e9%80%b2%e8%a1%8c%ef%bc%8cbarnes-nobles-%e6%ba%96%e5%82%99%e5%9c%a8-2-%e6%9c%88-22-%e6%97%a5%e6%8e%a8%e5%87%ba-8gb-nook-%e5%b9%b3/