> because it can only see what you've done on that site
I'm not sure what the problem is - all they need is to ask the publisher to set the cookie for them. Then it's a first party cookie that is relayed on the back end to the ad network, who gets all the same information from it that they used to get.
I'm not sure what the problem is - all they need is to ask the publisher to set the cookie for them. Then it's a first party cookie that is relayed on the back end to the ad network, who gets all the same information from it that they used to get.