Last Month, my adsense CPC of my proxy site was ok. It was like $.10/$.20 per click. But since the end of last month, it has decreased sharply and I now think that there is no use of using adsense in my site. Now, its like the cpc is $.01 . since the CPC is too low, I don't think using it is a good idea. However, The CPC was good at a time and I think that there might be a reason to this. So, I'm looking for a solution to this problem. If you have any idea why the CPC is decreasing, please share it. Thanks in advance