Google launched Google AdSense Blog.
Fewer Ads, More Money?
“We’ve updated AdSense to now vary the number of text ads that appear in a given ad unit. When we have a set of highly relevant and useful ads, we give them more of a presence in the ad unit by eliminating other ads. In some cases, if we determine a particular ad performs extremely well on a page, we’ll remove all other ads from the unit and show just this single ad.”
That’s a good insight to their new strategy. No wonder some publishers were complaining about their low impressions. Read more at http://adsense.blogspot.com
