Google has announced a new filter for advertisers running brand campaigns, to allow their ads to only show on AdSense sites ranked among the top 1,000 largest on the web, as defined by the DoubleClick Ad Planner. Google says this will ensure ads reach a large number of users, but only on well-known sites "best suited for branding goals." "It's important to note that the Ad Planner 1000 does not take performance statistics into account, and that by enabling this filter,