(http://www.itmedia.co.jp/news/articles/0705/14/news069.html)

(http://mantanweb.mainichi.co.jp/web/2007/05/412psp.html)

(http://www.sankei.co.jp/culture/enterme/070513/ent070513003.htm)

(http://www.heiwaboke.com/2007/05/post_908.html)