Xbox.com: Whacked 
Official site. Includes features, screenshots, description of weapons, and guide to secrets.
http://www.xbox.com/whacked/Games-Fusion
[55%] Review by Adam Hall. "This game is repetitive, stupid on so many levels, and just downright annoying"
http://www.games-fusion.net/content/000257.php
GameSpot
Coverage includes news, review (5.6/10), images, and videos.
http://www.gamespot.com/xbox/action/whacked/
GameSpy.com
Reviewed by Bryn Williams, score: 3 out of 5. "One terrifying game show host, eight crazy contestants, and plenty of online fighting fun."
http://xbox.gamespy.com/xbox/whacked/594539p1.html
