Much has transpired in the past fifty-plus years: a proliferation of disc jockeys, narrowcasting, the FM band, satellites, automation, talk, ethnicity, media empires, Internet streaming and gadgets galore... Deregulation, payola, HD radio, pirate radio, the fall of transcontinental networks, the rise of local stations, conglomerate ownership, and radio's future landscape are examined in detail. Radio has lost a bit of influence yet it continues to inspire stunning innovations.