Has anyone else noticed that adsense is adding advertisers who don't actually pay for the ads so they get free exposure on your sites.

i found on the average general site in any niche market, it will have about 20-35 bad or no paying advertisers on the site at any given time. you have to filter them out or you will never earn from them because Google is giving them free advertising spots, probably for some promotion or give away.

And its in almost any niche i look up. check out your advertisers urls in spyfu and you will most likely have tons of free loader advertisers, taking up your good advertising space in the adsense block and costing you clicks money and traffic.