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Hove / Παρος
You have a click through rate of 0.004%? That's not typical at all, average CTR is usually predicted at 1-4% depending on ad placement and type of site. I average about 3% for article based sites. I'd say NSC is very atypical due to have no adverts in the actual content. 95% of views (?) must come from registered users who probably barely see a banner during the whole day as they're so out the way. Putting an ad inside the post section or near the quick reply box would increase clicks hugely I think.
I'm pretty sure that if you view NSC as a Guest User there are ads placed within the content. I imagine CTRs are never as high as 1-4% on a site that has registered users, many of whom view NSC on a daily basis.