http://japanese.engadget.com/2017/12/20/go-ar-ios-arkit/

https://www.dream-seed.com/weblog/news/lenovo-tab4-8-plus-release

http://www.itmedia.co.jp/news/spv/1712/21/news051.html

https://www.gizmodo.jp/2017/12/iphonex-blush-gold.html?utm_source=dlvr.it&utm_medium=facebook

http://www.tokyo-np.co.jp/article/politics/list/201712/CK2017122102000126.html

https://www.gizmodo.jp/2017/12/xperia-xz2-render-leak.html

http://gigazine.net/news/20171220-iphone-performance-battery-age/

http://news.livedoor.com/lite/article_detail/14056918/

https://smhn.info/201712-amazon-tube-patent-rumors

https://www.gizmodo.jp/2017/12/apple-says-poor-performance-in-aging-iphones-is-part-of-delivering-a-good-user-experience.html?utm_source=dlvr.it&utm_medium=facebook

http://gigazine.net/news/20171221-apple-admit-iphone-slowdown/

http://jp.techcrunch.com/2017/12/21/2017-12-20-amazon-music-to-end-support-for-streaming-your-uploaded-mp3s/