[This is a huge tangent, but what I'm really wondering is how specific an ad we can buy. Would "I'm selling purple sunglasses with butterflies on them, so I want to show this ad to all Nirai between the ages of 15 and 25 with purple eyes, and record where they are when they view it" be a normal ad purchase? In the current US I could target an ad at myself using gender + zip code + age + shopping habits, but it would probably go to a couple of people in my neighborhood, since I don't think my shopping habits are THAT special.]
Re: [ad-tracking in the heptarchate]