via https://www.webmasterworld.com/forum89/6305.htmAmong the changes: Google will let advertisers run animated display ads on non-Google content sites that contract with Google to sell ads. It will allow advertisers to specify the sites on which they want their ads to appear, without having to pick a keyword tied to the content on a page. It will begin auctioning ad placements for its partner sites based on how many people see the ad, known as cost per impression, as well as its traditional cost-per-click method.