Welcome to WebmasterWorld Guest from 188.8.131.52
10 days ago....
Just to clarify, today we're beginning a limited beta. I can't give you specifics on its scope, but I can tell you that right now interest-based advertising is only open to a very small number of advertisers.
I turned off interest based ads on 4/11 and haven't seen apparent interest ads on my sites. Earnings I would say are slightly lower but so much within the "noise" tolerance that I couldn't possibly tell if turning them off really made a difference.
It would be nice if Google would add a third targeting category to the results. "Context", "Placement", or "Interest". I really wish they would mark CPM ads somehow as well, because I see evidence of CPM ads in eCPM and earnings but no "Placement" targeted indications, and I have long in the past asked Google not to show CPM ads on my account and they did so at the time.
I'm going to turn them off and see if my stats revert back to normal. I'll let you know what happens. But so far for my niche it appears that interest based are a money loser.
I don't think anyone can make ANY determinations on interest based ads as yet.
I humbly disagree. There are plenty of metrics I found to use to make the comparison. I was going to wait out the month, but the CTR was so far below my normal CTR from recent months and from the same month (April) over the last several years that I decided to turn the option off. My CTR came back immediately...and so did the eCPM and revenue. Sorry I wasn't willing to give up 30% of that site's revenue until October. ;).