zorogat - 8:45 pm on Aug 18, 2012 (gmt 0)
We are on the same boat, here.
Highest month with Adsense was september 2011.
Since then it's been a slow decline (less and less visitors sent by google), and now I am back to where I was in september 2008.
A staggering -80% in less than a year. Almost 4 years of work gone..
I am sooo close to give up.
It's curious how last december I did a major update to my website that improved user experience and some of the metrics (average pageviews almost doubled, visits average time improved of 30%..).
No matter how good my stats were, because hundreds of the keywords where I used to rank are now dominated by 'quick answers sites'.