This book explores how academia seeks to systematize the changes taking place in radio in its adaptation to the digital era. The individual chapters here investigate the most important issues currently under study by researchers in the medium of radio, tackling such key questions as the future of the radio spectrum, the new commercial radio business models, the function of community radio stations, and the development of university radio stations, amongst others.As such, this volume is integral to an understanding of the compound dimensions of the sound and radio media research currently being carried out in countries as varied as the United Kingdom, Spain, Poland, Finland, Portugal, Brazil and Argentina.