http://mytown.asahi.com/kagawa/news.php?k_id=38000000708080001

http://arena.nikkeibp.co.jp/article/column/20070803/1001924/

http://news.goo.ne.jp/article/internet/business/iw2007081001-internet.html

http://headlines.yahoo.co.jp/hl?a=20070809-00000105-yom-soci

http://headlines.yahoo.co.jp/hl?a=20070809-00000406-yom-soci

http://www.nikkei.co.jp/news/shakai/20070810AT1G0903409082007.html

http://headlines.yahoo.co.jp/hl?a=20070810-00000013-mai-soci

http://gigazine.net/index.php?/news/comments/20070808_avg_antivirus_free_edition/