[alkonaut]

> Could the ad networks scan the site instead and use the content on the pages to determine likely target audiences? You could still do ad networks, and target audience, based on the site that they are currently on.

Yes. But it simply doesn't work as well for most cases as targeting based on what you watched on netflix yesterday, googled last tuesday, and what products you had in your shopping basked last year but removed before you checked out.

[mrweasel]

I'd still love to see the statistics that shows that hyper targeted ads are more effective to any reasonable degree.

What I'm currently browsing seems more relevant in many cases, as compared to which sites I visited last week.