> ads that target your demographic, such as motherboards, instead of ads that don't target your demographic, such as Alzheimers drugs Surely this can be done b

> ads that target your demographic, such as motherboards, instead of ads that don't target your demographic, such as Alzheimers drugs Surely this can be done based on the page the advert loads on, rather than the user? It would give a pretty reasonable approximation of "stuff the user is interested in" (I mean, they're reading this page) without the ick-factor of knowing they were 25-35, Male, located in Zanzibar, etc. The meta-keywords used by Google could easily be utilised for this.