Because of my busy sched, I no longer have time to update some of my blogs. I then thought of sharing one of my blogs to a friend. He will help me udpate one of my blogs - High Demand Jobs - and in return he will have a premium adsense ad spot using his own Adsense Publisher ID.
But is sharing Adsense Ad Spot allowed? Is having a multiple Adsense Publisher ID on a the same page not violating Adsense Terms and Conditions?
The answer is yes, Adsense Ad Spot sharing is allowed and having a multiple publisher ID is not a violation.
Source: Sharing your ad space.