dvduval - 8:41 pm on May 1, 2010 (gmt 0)
I've personally reached a level of consistency in my earnings, but I don't necessarily have much motivation to try to grow the program. Increasingly, when I am wanting to improve revenue from ads, I have rolled out direct sales of ads.
I have a ballroom dance site that used to bring in over $1000 per month. It is a community with lots of traffic. It is much busier now that it was when it was making $1000/month from adsense. When the revenue got below $300 I started to think about how it wouldn't be long before I couldn't even pay for hosting costs and upgrades to the software with the adsense revenue. I have since added my own program and I'm back to $1000/month.
My feeling is that google should be a little more selective. I still see tons of "made for adsense" sites out there. If google is using Domain Age and Link Age in their search algorithm, shouldn't they also reward people who have been in the program longer and continued to produce?