The PBS Frontline program from 2001 is about how companies are marketing to teenagers, what is cool and how to sell to the growing market of teenagers who have disposable income
PBS has a number of very good programs that are available to watch online.
This particular program, The Merchants of Cool takes a look at how companies are marketing to kids without seeming to do so. By making themselves cool, companies are re-thinking their ways of advertising to kids.
Is this right or wrong? View the program yourself and come to your own conclusion.