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[edited by: martinibuster at 4:16 am (utc) on Nov 1, 2010]
[edit reason] Paraphrased email. [/edit]
At least for me Link Units produce more than 30% of my earnings.
Not trying to pick a fight, but that really doesn't tell you much about the added value of link units.
Don't forget the Ad Review Center filters. There is one for "politics" and I haven't seen political ads on my sites.
if an image ad bids just below the top-paying text ad? Since adwords advertisers always pay $0.01 above the next bidder's bid, shouldn't opting in improve overall CPC?
who will give a natural link with those image ads on
Incidentally, did you guys notice that in the new AdSense interface, we're able to see what portion of revenue comes from image, flash, html, text, and dynamic image ads?
[edited by: ken_b at 10:08 pm (utc) on Nov 11, 2010]
Do not believe everything you are told.
I detest ANY SCREEN MOVEMENT not initiated by the user
You can't turn interest based ads off, so your "test" was flawed from the start, and doesn't really "prove" anything.
What do you mean? You can turn them off from AdSense Setup > Channels > Targetable
[edited by: cien at 10:00 pm (utc) on Nov 12, 2010]
Another nice choice to have would be the ability to specify CPC image ads vs. CPM image ads. The way it is now, you must accept the cheapo bulk CPM ads, along with the far-fewer, better-paying CPC ads.
I like the use of a single ad unit, as well, because it doesn't look spammy. Every time I have added a second ad block, the results have not been that great - poor, in fact.