I am setting up the custom channels for my website. I am so lost though. How exactly does it work? I do not see where the report would be if a certain ad was clicked. Umm help!
It isn't possible to track which ads are clicked. The channels just track certain sites or pages of sites.
You can track specific AdSense unit through AdSense custom channels. Create channel and pick AdSense units. You need to wait one day to new custom channel become visible in reporting. For more detailed information visit http://interestingwebs.blogspot.com/2011/02/how-to-track-specific-adsense-ad.html