Voltage

GameSpot
Summary, images, videos, and a forum.
http://www.gamespot.com/ps3/driving/voltage/

GameSpy
Provides information and screenshots.
http://xbox360.gamespy.com/xbox-360/voltage/

GameZone
News, trailer, and screenshots.
http://ps3.gamezone.com/gamesell/p34276.htm

IGN
Information, media, and a message board.
http://xbox360.ign.com/objects/953/953509.html

Team Xbox
News, movies, and screenshots.
http://games.teamxbox.com/xbox-360/1821/Voltage/