>* adsense serves ads to 'open web' properties already. However they do this with user tracking, just like facebook already does.* nit: AdSense does both conte

>* adsense serves ads to 'open web' properties already. However they do this with user tracking, just like facebook already does.* nit: AdSense does both contextual and personalized advertising. It launched as contextual only, and that is still part of what it's doing: https://en.wikipedia.org/wiki/Google_AdSense https://en.wikipedia.org/wiki/Google_AdSense (Disclosure: I work on ads at Google, speaking only for myself)