http://www3.nhk.or.jp/news/html/20120727/k10013894781000.html

http://gigazine.net/news/20120723-the-usb-rgb-led/

http://gigazine.net/news/20120726-pdf24-pdf-creator/

http://news.livedoor.com/article/detail/6793931/

http://mainichi.jp/select/news/20120724k0000m010148000c.html

http://headlines.yahoo.co.jp/hl?a=20120726-00000046-mai-soci

http://mainichi.jp/area/news/20120727ddn012040021000c.html

http://www.shojihomu.co.jp/seigo-hotei/914-seigo-hotei-1994-4.html

http://mainichi.jp/select/news/20120728k0000m040123000c.html

http://headlines.yahoo.co.jp/hl?a=20120726-00000044-mai-soci

http://headlines.yahoo.co.jp/hl?a=20120726-00000110-jij-soci

http://www.nikkei.com/article/DGXNASDG25036_V20C12A7CR8000/

http://www.tokyo-np.co.jp/article/tokuho/list/CK2012072702000160.html

http://mainichi.jp/select/news/20120728k0000m040102000c.html