Rock Band

GameSpot
News, previews, images, videos, links, and a forum.
http://www.gamespot.com/xbox360/puzzle/rockband/

GameSpy
Preview, news, and screenshots.
http://ps3.gamespy.com/playstation-3/rock-band/

GameStats
Videos, screenshots, article links, and a message board.
http://www.gamestats.com/objects/879/879549/

GameZone
News, preview, trailer, and screenshots.
http://xbox360.gamezone.com/gamesell/p32199.htm

IGN
Videos, screenshots, previews, news, and a message board.
http://ps3.ign.com/objects/897/897524.html

Team Xbox
Preview, screenshots, and news.
http://games.teamxbox.com/xbox-360/1694/Rock-Band/

1UP
News, previews, images, and videos.
http://www.1up.com/do/gameOverview?cId=3158412

Wikipedia
Article describing gameplay, soundtrack, downloadable content, and pricing.
http://en.wikipedia.org/wiki/Rock_Band_(video_game)

Eurogamer
Preview, by Matt Martin: "...if it doesn't break your bank, then you're going to get countless laughs out of standing around with your mates..." <small>(July 11, 2007)</small>
http://www.eurogamer.net/article.php?article_id=79255