http://npn.co.jp/article/detail/41373704/

http://www.afpbb.com/article/environment-science-it/it/2922569/10148914

http://gigazine.net/news/20130124-caffeine-infographics/

http://www.47news.jp/CN/201301/CN2013012501001095.html

http://www.afpbb.com/article/environment-science-it/science-technology/2923396/10166591

http://senben.org/archives/4299

http://headlines.yahoo.co.jp/hl?a=20130125-00000301-fukui-l18

http://www.ringolab.com/note/daiya/2013/01/facebooktwitteriosinfomatic.html

http://gigazine.net/news/20130123-smartcam/

http://googlejapan.blogspot.jp/2013/01/blog-post.html

http://www.rbbtoday.com/article/2013/01/23/101669.html

http://headlines.yahoo.co.jp/hl?a=20130124-00001172-yom-soci

http://www.courts.go.jp/about/topics/2309/index.html

http://www.yomiuri.co.jp/national/news/20130124-OYT1T00601.htm?from=tw

http://gigazine.net/news/20130122-decor8/

http://gigazine.net/news/20130121-pnotes/

http://news.goo.ne.jp/article/mycom/trend/mycom_745722.html?fr=rk

http://news.goo.ne.jp/article/yomiuri/nation/20130123-567-OYT1T00775.html?fr=rk

http://headlines.yahoo.co.jp/hl?a=20130123-00000566-san-soci

http://www.asahi.com/edu/center-exam/TKY201301190056.html

http://www.yomiuri.co.jp/atmoney/news/20130121-OYT1T01047.htm

http://gigazine.net/news/20130122-docomo-2013-spring-2/

http://www.ringolab.com/note/daiya/2013/01/post-1762.html

http://gigazine.net/news/20130120-mile-gallone-quarter/

http://www.nnn.co.jp/news/130122/20130122007.html

http://www.yomiuri.co.jp/national/news/20130122-OYT1T01188.htm?from=main4

http://www.yomiuri.co.jp/national/news/20130122-OYT1T00404.htm

http://headlines.yahoo.co.jp/hl?a=20130123-00000012-asahi-soci

http://www.itmedia.co.jp/mobile/articles/1301/17/news051.html

http://www.ringolab.com/note/daiya/2013/01/post-1761.htm