The Interactive Advertising Bureau announced the lineup for its fourth annual IAB Podcast Upfront event, which is scheduled to take place in New York on Sept. 6. There will be 12 presenting companies, including returning companies Authentic (a Podtrac company), HowStuffWorks, iHeartRadio, ESPN Audio, Panoply Media, WNYC Studios, Wondery, Midroll Media and NPR. New to…

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