> > The adverts use some kind of "intelligent" algorithm to decide what to > throw at you. Will Robb's message generically titled "Hi" throws up > generic adverts for college degrees, etc. Messages obviously about > Pentax gear throw up adverts for places to buy Pentax gear. Even posts > titled "DA 16-45" throw up advertisements for places to buy Pentax. I > don't care for the advertising but have to say that I am impressed that > this is possible. Maybe a guru like John Francis can explain how this is > done.
Short answer: they probably license the technology from Google Brief overview: They look up "DA 16-45" in their index, and find all the places that talk about it. Then they look at all the other things that are mentioned along with DA 16-45, and pick the most popular of those (in this case, almost certainly the keyword "Pentax"). Finally they search their advertiser list for occurrences of that keyword.
