X - Xbox Show

IGN: X06 Central
Contains updates and media for X06.
http://xbox360.ign.com/index/x06/2006/index.html

Wikipedia: X (Xbox show)
Gives information for past years of the show.
http://en.wikipedia.org/wiki/X06

Team Xbox: Microsoft Announces X06
"Microsoft announced today that X06, the Xbox brand experience for the games and entertainment industry, will be held on 27th and 28th September this year." <small>(June 22, 2006)</small>
http://news.teamxbox.com/xbox/11217/Microsoft-Announces-X06/