I am guessing that our google queries could be used to classify us into all sorts of interesting categories. E.g. it wouldn’t be too hard to pigeonhole me as a Russian-American programmer based on what I search. Well, so why doesn’t Google incorporate this type of info in the AdWords program? If they already do location targeting, why don’t they also do “job targeting”, “ethnic category targeting”, “age targeting” and similar?
Perhaps one answer might be, maybe they already do (to increase relevance and click rate) but don’t tell anybody including the advertisers, but that would seem economically inefficient. After all, by letting advertisers target ads better they would have increased the efficiency of advertisement and hence expanded the market, right?
Or are they concerned about popular backlash from people for whom the appearance of such service would hammer home the threat of automated profiling and so prefer to keep anything like that under wraps?