To some, podcasts might not sound all that cool, but the “new radio” industry is booming and drawing in listeners in droves—including elusive Millennials. With 69 million downloads per month, the audience of eager podcast listeners seems to be expanding rapidly—as is the content available. Following in the footsteps on the recent, wildly popular podcast Serial, NPR is releasing a new series, Invisibilia, about the invisible forces that control human behavior. Niche content is a major part of the podcast appeal for Millennials. (NPR, Washingtonian)