I noticed that a few days ago, although my daily CPC is the same as it has been. I contacted YPN and they replied with the blanket statement basically that revenue level is not guarenteed. I finally just attributed the daily reporting to what YPN is actually getting, and the next day's report is what publishers really get (about 60 - 75% less). In other words YPN is taking about 60 -75% of the revenue from each click. I think someone goofed a YPN again. Now we know how much they actually take. I could be wrong, but that's the way I see it.