The advertising people know that they can slip information and impressions into your brain whether you think you're listening/reading/clicking or not. All they

The advertising people know that they can slip information and impressions into your brain whether you think you're listening/reading/clicking or not. All they really need to do is tick a few % of the marginal decision-makers who need to (for example) buy a car to say "I should consider a Ford" and they've covered the ad budget.