Reference

http://maps.google.com/?ll=45.123772,-123.113917&t=h

The Road to Firefox 2 - Behind the Scenes: The Firefox crop circle!
http://www.firefoxflicks.com/web-diaries/?p=96

Linux Users Group - Oregon State University
http://lug.oregonstate.edu/index.php/Projects/Firefox/Firefox_Circle

via

MOONGIFTニュース - 2006-11-30 - Firefox on Google Maps
http://news.moongift.jp/i-2941.html

GIGAZINE - 2006-11-30 - Googleマップで見られる巨大Firefoxロゴ
http://gigazine.net/index.php?/news/comments/20061130_google_firefox_logo/