AdSense Publishers Will Get Pay Per Action Ads, Like It Or Not
Google sent out emails to select publishers, notifying them that a portion of their ads will be serving Google’s pay per action ads. That means instead of these publishers earning money on a per impression or per click basis, they can only earn money when an action is completed by the user.
This will only impact about 5% of a publisher’s ads, plus publishers can opt out by emailing Google. But if no action is taken on part of the publisher, that percentage of ads will not be the usual pay-per-click type.