limoshawn - 6:45 pm on Mar 3, 2011 (gmt 0)
I have to think that google can make more money getting advertisers to buy the keywords directly rather than sharing the revenue with publishers. Everyone using adsense has given google all the data they need to make sure that advertisers ads are disPlayed on google for the long tail terms that were driving the publishers business. Since publishers depend so much on google for traffic they really made themselves obsolete.
to expand on this, google has the traffic and the advertisers. why would google want to send traffic to you for free so you can make money off of their advertisers? Now if you are a publisher and you get traffic from somewhere other than google then google will love you to use adsense. they all ready made short work of cleaning up almost all adwords arbitragers, now that they have all the data for long tail searches provided by publishers using adsense they will clean up the organic arbitragers too.
Ready for next year's shakeup? well it won't be long before google wants to get the majority of ecom only sites out of the organic results. why you say? well money of course but the public front will be because searchers don't want commercial results in their searches unless they are disclosed. searchers want wikipedia results for their organic searches... maybe i'm wrong but that's what i'm planning for with my tinfoil hat.