That functionality's available, but not to everybody - you need to have a relationship with Google. When operational, Findory did this client-side - each page

That functionality's available, but not to everybody - you need to have a relationship with Google. When operational, Findory did this client-side - each page included a list of space-delimited keywords based on the content of the page and the user's past behavior. If you look at some of the Findory pages at archive.org you can see the premium publisher AdSense call, with the keywords listed under the google_kw variable. To learn a bit more about what premium publishers' ad call can do, just search around for google_ad_request_done.