Xbox 360

Ars Technica
First in a series of articles exploring the hardware platform.
http://arstechnica.com/articles/paedia/cpu/xbox360-1.ars

360 Gamer Magazine Online
The official website for UK-based magazine. News, reviews, screen shots, forum, and information on the magazine.
http://www.360-gamer.com

Gamespot
Xbox 360 news, reviews, previews, trailers, and codes.
http://www.gamespot.com/xbox360/

GameSpy Xbox 360
News, reviews, screenshots, previews, movies, cheats, and forums.
http://xbox360.gamespy.com/

IGN Xbox 360
News, previews, trailers, screenshots, and message boards.
http://xbox360.ign.com/

MyGamerCard.net
Shareable gamercards for display in online profiles and forums.
http://www.mygamercard.net/

Planet Xbox 360
Coverage of news, previews, forums, and articles.
http://www.planetxbox360.com

Xbox 360 Forum
Xbox 360 message board.
http://www.xbox360forum.com/

Xbox Circle
Offers news, previews, and articles.
http://www.xboxcircle.com

Xbox Nerds
Contains news, screenshots, previews, reviews, and cheats.
http://www.xboxnerds.com/