Famous people attract viewers attention. They might explore a site if they see their favorite athletes.

Some sites have photograph galleries of famous people in big events. While you looking at the pictures there is almost always an ad on the same page that you're seeing. And no matter what that ad is going to have an effect upon you.

Say you see an ad for a winter sport competition near you. If you like sports you're definitely going to want to go and that means that the company accomplished their goal of making more money. And guess what. You started out just by looking at harmless pictures and ended up giving the company money.