YPN Now Only Allows 3 Ads Per Page
Yahoo Publisher Network has updated their policies to allow only 3 ad units per page. I’m not really surprised by this, AdSense has had this same policy in place since I can remember. I’m sure this has to do with their recent change to eliminate duplicate ads in multiple ad units on the same page. If a publisher had 15 ads on their page, it would be difficult to fill all those spots with relevant ads.