In 2014, American young adults listened to more Internet radio than terrestrial radio. Internet radio is definitely bigger in the United States than Australia at the moment. However, if the trends in North America are telling us anything, it is that Internet radio will continue to grow at a rapid pace, and possibly rival the listenership of traditional radio. For advertisers, this provides a unique opportunity to advertise on another platform. Here is what you have to know about Internet radio advertising.