Getting back on topic I will post my obversations about my current experience with google adsense. My page views have been approx 40% down since the last 3 months but EPC has risen in place of the page view loss, hence I am running on approx $100 RPM instead of say $60 RPM a few months ago with higher PV. The new ad format I personally think is for the better especially where the ads are below each other in rows. I have my reservations about the blue button with a white arrow, IMO it looks small and rather out of place and IMO a larger text fill would be more appropriate with the button at the bottom (large rectangles). My main site runs on 2 large rectangles and a 200 x 200 square, One large rectangle is text only (my biggest earner) the other large rectangle is text/image and performs approx 80% of the text only. The 200 square is text/image and basically a small earner. After multiple testing this format of 2 large rectangles and the 200 square is by far the best setup having found that reducing ad area increases ad EPC.
I personally do not click my own ads or get people to click them as this will cause dilution with conversion rates and hence drop the RPM, this is why I feel i'm successful with high RPM, I have the same ad customers month after month and they are not stupid and must know my site runs on a high conversion rate. Another thing that I felt helped my site was having a dedicated IP, people will say it makes no difference, but I feel the issues of the google account operation with my site are so much smoother, I realise this is debatable but thats how I feel and can not produce any evidence.