http://kengo.preston-net.com/archives/003287.shtml
http://blog.inasphere.net/2007/07/entry_fee.html
CSS Nite について考えてみる
http://transrain.net/2007/07/13/152948
収支概算を公表します
http://cssnite.jp/archives/post_746.php
http://blog.masuidrive.jp/index.php/2007/07/11/masuidrive-working-style/
http://gigazine.net/index.php?/news/comments/20070706_maps_of_war/