IGN
Screenshots, videos, cheats, reviews, previews, news, press releases, and a message board.
http://xbox360.ign.com/objects/752/752103.html

GameStats
Videos, screenshots, average scores, article links, and a message board.
http://www.gamestats.com/objects/752/752103/

Team Xbox
Review, previews, movies, news, and screenshots.
http://games.teamxbox.com/xbox-360/1593/Def-Jam-Icon/

GameSpot
Reviews, news, previews, images, videos, cheats, links, and a forum.
http://www.gamespot.com/xbox360/action/defjam3/

1UP
News, previews, reviews, images, videos, cheats, and links.
http://www.1up.com/do/gameOverview?cId=3148406

GameZone
Review, preview, interview, news, screenshots, and links.
http://ps3.gamezone.com/gamesell/p30663.htm

GameFAQs
Cheats, reviews, and a message board.
http://www.gamefaqs.com/console/xbox360/data/929466.html

Eurogamer
Provides information, news, and screenshots.
http://www.eurogamer.net/game.php?game_id=6803