The traditional radio medium has seen significant changes in recent years as part of the current global shift toward multimedia content, with both digital and FM making significant use of new technologies, including mobile communications and the Internet. This book focuses on the important role these new technologies play - and will play as radio continues to evolve. This series of essays by top academics in the field examines new options for radio technology as well as a summary of the opportunities and challenges that characterize academic and professional debates around radio today.