Marketers/advertisers usually focus their efforts on the people responsible for making the purchase. In many cases, this is an effective approach but in other cases it can make for a totally useless marketing campaign.

Virgin Mobile took a more effective approach in marketing their cell phone service by focusing not on the people that would be making the actual purchase, but instead focusing on the influencers of the people making the purchase. To make this campaign work, Virgin developed a viral website called Parental Enlightenment Kit which offers many tips (often fairy funny ones) to convince their parents to purchase a Virgin Mobile phone for them. By enlisting the teenagers Virgin has multiplied the effectiveness of their marketing campaign for 3 reasons: