http://www.yomiuri.co.jp/national/news/20100719-OYT1T00847.htm

http://gigazine.net/index.php?/news/comments/20100719_road_sms/

http://www.chunichi.co.jp/article/national/news/CK2010071802000045.html

http://www.ringolab.com/note/daiya/2010/07/gg3a.html

http://cache001.ranking.goo.ne.jp/crnk/ranking/017/ulterior_motive_female/

http://mainichi.jp/enta/book/news/20100719ddm012020031000c.html

http://www.recordchina.co.jp/group.php?groupid=43832&type=1 http://www.forbes.com/2010/07/14/world-happiest-countries-lifestyle-realestate-gallup-table.html

http://www.cnn.co.jp/science/AIC201007190013.html

http://www.asahi.com/national/update/0719/TKY201007190460.html

http://www.asahi.com/national/update/0719/SEB201007190111.html

http://headlines.yahoo.co.jp/hl?a=20100719-00000004-kana-l14