AdSense Introduces “Allowed Sites” Feature
AdSense has introduced “Allowed Sites” a new feature that allows publishers to specify which sites they are running AdSense on. Users can leave things the way they always have been, that is, allowing any site to run ads with their publisher ID, or publishers can specify a list of sites that their AdSense ads will appear on. If any ads with the publisher’s ID appear on any site not in that list, the impressions and click will not be counted for that site.
The new feature can be accessed by going to the “AdSense Setup” tab on the control panel and selecting “Allowed Sites”.
This is something that many publishers have been asking for for quite a while. One addition I’d like to see to this is a report that would list all the sites that have displayed ads with your AdSense ID that are not on the list. This would be good for two reasons, It might show some sites that are up to no good, and it would reassure publisher that all their sites have been listed properly.
Update: The Allowed Sites feature seems to be gone from my AdSense control panel. And my Firefox AdSense Notifier that was broken all day seems to be working again. It looks to me like Google rolled back some changes.
Another Update:There is now an AdSense help page for Allowed sites.