New 300×600 (Massive) AdSense Ad Unit Now Available In The UK
Just to prove it here is a live one :-
Pretty big isn’t it? (Though this is not a very good example if you are only seeing one or two text ads above and the rest of the space is empty – but you get the idea…)
It will take a while for all advertisers to get image ads / rich media ads done for this size of ad unit – but I’m willing to bet that most publishers will see an increase in revenues by using this ad unit…