rehabguy - 10:47 pm on Apr 11, 2007 (gmt 0)

For me, it's about user experience and earnings per click (EPC) x click thru rate (CTR)

The off-topic ads make Yahoo look really dumb, and probably confuse my visitors. (Most of whom don't even know they are ads, probably think they are some sort of navigation).

Google ads contribute value to my site by being on target.

That being said, here is what the EPC x CTR part:

Yahoo: $.90 EPC / .3% CTR = $.27 payout per click
Google: $.30 EPC / 1.1% CTR = $.33 payout per click

So I end up making more with Google in the long run, even though Yahoo pays more per click. Yahoo could easily win me over if they made their ads more relevant and doubled their CTR. (Like, duh, just use my "ad targeting" selection, Yahoo). Then you would have this:

Yahoo: $.90 EPC / .6% CTR = $.54 payout per click
Google: $.30 EPC / 1.1% CTR = $.33 payout per click

So Yahoo only has to have HALF THE CLICK THRU RATE of Google to provide more earnings, and therefore start growing their Publisher business into a Billion dollar profit center like Adsense.

And I would love for them to succeed!