In what way does media and advertising work together?

The different forms of media are used as outlets for advertisers to get their message across. This allows for media outlets to charge advertisers to show their commercials, which minimizes the cost that they have to charge their viewers. If viewers want to watch their favorite shows without missing anything, they have to watch the advertisements.
With the advent of the internet advertisement has taken the next step towards becoming more individualized. Advertisers get information about their potential customers through these media sources and then advertise with products theat would appeal to the demographic.
Billboards are still a viable source of advertising due to the huge amount of eyes that see the signs. While people are waithing in traffic they see these signs and are forced to think about them.