The overheated podcast sector has hit an iceberg, according to recent reports citing staff layoffs and the end of the big-money talent deals that until recently had become  commonplace. Spotify, Amazon, NPR and SiriusXM have been trimming budgets while allowing costly agreements to expire without renewals. The sector grew explosively in the past decade, with the number of U.S. listeners age 12 and over who have tried podcasting more than doubling to 62 percent, or 177 million users, according to Edison Research. But now that the euphoria has worn off, a mature market is learning sustainability. Continue reading Podcast Industry Reins in Costs After Years of Rapid Growth