The adsense example was made to point out that in order to make search a profitable business a lot of stuff needed to be built that has nothing to do with the 'search' product per se, it is the life support machine that allows 'search' to exist.
I could have probably picked a better example because, as has already been pointed out there are lots of interesting sub-problems in keyword based advertising.
Maybe I should have used an online advertising agency as the example, with the ad-matcher as the example of an algorithmically interesting item and the reporting, the statistics and the help desk as the infra structure.
I could have probably picked a better example because, as has already been pointed out there are lots of interesting sub-problems in keyword based advertising.
Maybe I should have used an online advertising agency as the example, with the ad-matcher as the example of an algorithmically interesting item and the reporting, the statistics and the help desk as the infra structure.