http://gigazine.net/index.php?/news/comments/20090721_exploding_internet_map/

http://homepage1.nifty.com/classicalcd/etcetera/etcetera.htm

http://booklog.kinokuniya.co.jp/hayase/archives/2009/07/post_142.html

http://news.goo.ne.jp/article/diamond/business/2009072104-diamond.html?fr=rk

http://news.goo.ne.jp/article/wiredvision/nation/2009news1-20364.html?fr=rk

http://www.excite.co.jp/News/column/20090720/Slashdot_09_07_20_1049243.html

http://www.asahi.com/national/update/0718/TKY200907180087.html

http://www.kensatsu.go.jp/kakuchou/utsunomiya/html/kikou.html

http://www.news24.jp/articles/2009/07/22/07140101.html#m0

http://headlines.yahoo.co.jp/hl?a=20090722-00000003-jij-soci

http://www.asahi.com/politics/update/0721/TKY200907210224.html

http://ameblo.jp/espans/entry-10304263217.html