You can manage your CNET newsletter subscriptions on this page: http://www.cnet.com/newsletters/
Note that you can access that page and other account settings from your CNET profile page: http://www.cnet.com/profile/
Hope this helps,
John
Unsubscribe to cnet newsletters

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic