are you doing anything about non existent CTR for poorly performing countries (i.e. blocking them)
Nope, I found your earlier post to coachm interesting however this doesn't apply to me since I am a global specialist construction materials supplier and we get, and supply, direct to many countries including many of those from which we do not earn any AdSense revenue whatsoever.
Essentially my sites are B&M sites yet only supplying projects/wholesalers/etc who buy in bulk and we export direct from our factories worldwide from several strategic locations.
AdSense was a gift made in heaven when it arrived since it enabled our customers' customers in many countries the opportunity to advertise on our network of sites direct to Joe Public whereas before AdSense our inboxes/faxes/telephones were non-stop from people asking where our products could be purchased.
Obviously I am not the normal type of publisher, and to be honest when I first added AdSense in August 2003 I did look at it simply as a means to try and earn extra income to cover our site costs etc, little did I realise when we went sitewide across all sites just how much it would generate.
There you have it, I'm totally the wrong person to ask or give advice since I accept all traffic from anywhere simply because I do not know what the next big enquiry may be...and as it just so happens this morning an enquiry for an extension to an existing airport in China from a German architectural practice loacted in China!
I'm fairly sure we haven't exported to Antartica however there are not many countries our products have not reached plus it is very useful for many of our customers, and again their customers, to have our essential technical data available 24/7/365.