I would just like to complete the list. Add the following to HOST file and forget GoogleAds forever
[ I HAVE COLLECTED IT FROM A SITE, FULL CREDIT GOES TO ORIGINAL AUTHOR ]
127.0.0.1 pagead2.googlesyndication.com #[Google AdWords]
127.0.0.1 imageads.googleadservices.com #[Ewido.TrackingCookie.Googleadservices]
# [Google Analytics]
127.0.0.1 apps5.oingo.com #[Microsoft.Typo-Patrol]
127.0.0.1 service.urchin.com #[Urchin Tracking Module]
127.0.0.1 ssl.google-analytics.com #[urchinTracker]
127.0.0.1 www.google-analytics.com #[Google Analytics]
Cool Host-file tricks
For those of you who don't understand what's going on, let me clear it : 127.0.0.1 is your own machine's IP (localhost). So, basically when you connect to 127.0.0.1, you are looped back to your own computer !
What you do in the host-file is, you link the URLs (on the right) to the IP 127.0.0.1 (on the left). So, the ads are gone, 'cuz their URLs loop back to your own PC.