Penny Arcade Expo (Subscribe)
Links
GameSpot
http://www.gamespot.com/news/6177617.html
Ricardo Torres gives a wrap-up of day one of the 2007 expo. (August 25, 2007)
Penny Arcade Expo
http://www.pennyarcadeexpo.com/
Official site with schedule, FAQs and registration information.
Wikipedia: Penny Arcade Expo
http://en.wikipedia.org/wiki/Penny_Arcade_Expo
Contains information about the expo from 2004 to 2007.