Hello guys i think all know that adsense was down sometime before today. I just went inside adsense control panel to get code to place on a webpage and found new changes. In Adsense Control Panel .... on the "Adsense Setup" tab when you try to get the new code... in the last step it asks for channels... and there some changes are seen now it allows one ad block to be tracked from multiple channels. Have a look.. i dont know its new or already old but i think there are changes please checkout. regards aditya
You can read more about it on the Adsense blog: http://adsense.blogspot.com/2006/10/introducing-multiple-custom-channels.html
Yeah this was in the official Adsense newsletter a few days back. Useful perhaps although I personally do not think I would use the feature on my sites, cannot think of a reason.
One circumstance I can see it being useful in would be tracking individual ad blocks on a large site, and tracking them as a whole, so two channels per ad block.