bird - 8:29 pm on Aug 2, 2005 (gmt 0)

For an advertizer, ad blockers are highly beneficial. They eliminate those impressions (and associtated costs) that are least likely to result in any sales. The more people use ad blockers, the higher the ROI for the advertizer will be. Consequently, the same advertizer will be ready to pay a higher price for the remaining impressions.

Instead of fighting ad blockers, publishers should encourage them, because they lead to higher ad rates.