http://www.sangiin.go.jp/japanese/joho1/gian/15603156103.htm
http://www.zdnet.co.jp/internet/guide/0306/newsbr/02.html
http://www.dpj.or.jp/news/200305/20030515_04deai.html
http://it.nikkei.co.jp/it/news/index.cfm?i=2003060605299j0
http://www.nikkei.co.jp/news/shakai/20030606AT3K0601Q06062003.html