Let's go back to banner ads that are "targeted" based on what type of website you're looking at, rather than based on vacuuming up as much private info as possible about users.
Let's go back to banner ads that are "targeted" based on what type of website you're looking at, rather than based on vacuuming up as much private info as possible about users.
I have no expertise in this, but I don't see why anyone would pay for banner ads for more than pennies on the dollar if tracking is an option.
Wouldn't removing tracking change the economics?
On the other hand, it can be that people detected the change on their results metrics, and decided to increase their spending because of the change. I really don't know how to differentiate this scenario from a normal increase on internet advertising that should naturally happen at the earlier days of a fast growing web. I don't think even Google (that has all the numbers) can tell them apart either.