According to PwC’s latest Entertainment & Media Outlook, online advertising in the United States is poised for further growth in the next few years. PwC estimates that internet ad revenue could grow to $116.2 billion a year by 2021, up from $86.4 billion this year.

Fortunately for traditional media outlets, i.e. TV and radio broadcasters, newspaper and magazine publishers, advertising is not a zero sum game and a dollar spent online is not necessarily pried away from a dying newspaper. In fact, traditional media outlets are profiting from the digital ad boom themselves.

As our chart illustrates, print publishers as well as TV and radio broadcasters are expected to generate a significant chunk of their ad revenue online by 2021.