This is the funniest thing I've ever read on HN.
- Signed, the guy who wrote the original piece for TR
On a more serious note; a marketing service that put it's customers brands in front of people who didn't yet know that those products were what they were looking for would be an awesome startup from a business perspective and a somewhat creepy one from a human perspective.
e.g. You're talking about medical condition X, therefore I shall try to sell you drug Y even if you don't mention Y or drugs at all in your search terms/blog post/etc. And I don't care if you even knew that drugs for X existed.