You can be an
Adsense premium publisher once your website has 20 million page views a month or 5 million search queries in total. Afterward you will be promoted to an
Adsense premium publisher. This is unique and will grant you a lot of advantages compared to a normal publisher.
The basic improvements:
- More flexibility in ad formats
- Optional labeling of ads
- Google sales representative & account manager
- Advanced filtering options
- More monetization options
Check this picture, showing one of the layouts.
This seems like very hard to reach but undoubtedly if your site becomes a huge success it can be easily made possible. What I myself like most about it, that you no longer have the "Ads by Google" url. That will result in even more clicks.
Let me know your thoughts!