http://www.forest.impress.co.jp/article/2008/12/09/groupsession220.html

http://itpro.nikkeibp.co.jp/article/NEWS/20081209/321080/

http://booklog.kinokuniya.co.jp/hayase/archives/2008/12/post_116.html

http://www.ringolab.com/note/daiya/2008/12/post-880.html

http://www.gizmodo.jp/2008/12/post_4745.html

http://news.goo.ne.jp/article/internet/business/it/iw2008120903-internet.html?fr=rk

http://www.asahi.com/national/update/1209/TKY200812090327.html

http://www.fnn-news.com/news/headlines/articles/CONN00145507.html

http://headlines.yahoo.co.jp/hl?a=20081210-00000003-khk-l04

http://headlines.yahoo.co.jp/hl?a=20081209-00000586-san-soci

http://headlines.yahoo.co.jp/hl?a=20081209-00000590-san-soci