It does not take a genius to work out that ads for strollers are
likely to be wasted on parents with older children or that you shouldn't
put a Starbucks ad in front of someone who doesn't drink coffee. But
how can you tell who is really looking at your ad? This week Google
publicized various innovations it is bringing to display advertising that are designed to generate a better match between what is displayed and what a web surfer might actually want to buy.