A Burst Media survey of 13-17 year olds found that more than one-third (37.4 percent) say they spend three or more hours per day on the internet. 

"The internet accounts for a significant portion of a teen's overall media time. It is also rarely consumed on its own and without distractions. These distractions are part and parcel of a teens' life. Corralling these distractions to minimize their disruption is a significant challenge for marketers," says Chuck Moran, manager of market research for Burst Media. 

The study also found that 69 percent said if they had no internet access outside of school it would "ruin" their day.

"Marketers should use the internet to create a central content point for teens on a variety of subjects and interests. By doing so marketers can then develop integrated marketing campaigns with advertising creative and programs referencing a central platform and working in tandem to get teens' attention," adds Moran.