I just setup an adsense channel, and loaded it (not clicked!) to see if it works. The ads seemed to load fine, but no impressions are showing up in my adsense reports. Anyone know how long it takes for channel info to appear?
It takes much longer than your regular stats. Some people say that you may get stats up to two days later while others say it takes a few hours. I personally don't use channels, but as I increase my website network I may just use them.