xtreem - 12:15 pm on Sep 1, 2005 (gmt 0)

Personnally my earnings have roughly doubled since the changes. Just because there are people that are earning less doesn't mean that Google could be earning more if they were to keep those particular accounts stable.

Perhaps those that are earning less had a worse conversion rate, and thus it makes sense for everyone (except that publisher) for the money to be spent/clicked on sites with higher conversion rates. For every $ some publisher doesn't get, theres another publisher or advertiser that is earning or saving a $, or possibly more if the change is good (eg the dollar spent elsewhere may have a higher conversion rate for the advertiser).

Then again, I guess thats basically smart pricing. But it could just be a change which has the same effect as smart pricing, which just catches out some where the other form might not have.