Hi everyone.. I did some analysis on the Adsense impressions stat VS the total impressions which i tracked using hitslink web analytics program. I found out that there is a wide gap in between and Do You Know Why??? I just found out that with the Allowed Sites being activated to only calculate all impressions for my website ONLY, there are many images' search engines Adsense impressions which are NOT being reflected and thus any clicks from there are basically being wiped out completely.... This is a total waste. As such I include in the allowed lists all the images' search engines eg. images.google.com, images.google.com.ph, images.search.yahoo.com etc... There's a long list of those image search engines to be included inside. No choice but to add them inside and try to keep all the water in the bucket.