Forum Moderators: martinibuster
Interestingly I have reduced the total number of ads by swapping 160 skyscrappers for large rectangles. I have the distinct impression that if you reduce the number of impressions you improve the quality of the ads shown and thereby improve the CTR and, by inference, the EPC:
That is, if these are my 30-day moving averages (hypothetical, of course) on a given day...
EPC CTR Revenue
---- ---- -------
1.00 8.0% $200.00
... I've begun to mentally prepare myself to achieve the following numbers for the next day...
EPC CTR Revenue
---- ---- -------
0.75 6.0% $150.00
If the day's 30-day average moves, then my "expectations" for the following day move accordingly.
As I said, it's the wimp's way out (and I realize my early morning math may be out of whack), but my heart palpitations have practically vanished. :)
One more thought...
Wouldn't it be cool if about 300 of us tracked our 7-day and 30-day moving averages and compared the rise and fall of our stats?
It's one thing to read a thread of 100 posts in which x% say their numbers went up by y% (and the rest reported their numbers down by z%). But, imagine seeing a page with 300 little graphs showing trendlines for a 3, 4, 5, 6-month period.
Okay, I'm dreaming (it'd be a logistical nightmare to coordinate), but wouldn't that be cool?
Damon
I don't think advertisers are up bidding up... since we are all different types of sites. The chance of keywords getting all bidded in different industries is slim.
I do think Google is tweaking matching algo since CTR is too erratic... My guess is that Google brings back higher CPC ads with less incentive for people to click.
I suspect some of these are quite "expensive" ads as they're not so specific. Wonder when I'll get to find out...