Last week, i configured my URL channel to get a specific report on each website. Last night i get some weird clicks at one of my sites...with no earnings at all...so today, i've checked my adsense account and see my channel is all gone. at this point, makes me wondering...maybe adsense have some unfixed bugs. and guys...u should read adsense forum...then you can get the better picture...
http://groups.google.com/group/adsense-help?sourceid=asos&subid=ww-en-et-homepage&medium=link

Actually using the channel function is very good for those guys who really serious about making some money using adsense...just log on to your account and select adsense setup...then select channel. add your URL to the active list. after doing that...refresh your browser and check the report...u will see a "top channel" button is appears.

remember this keywords...channels