To learn something new everyday: "The Writer's Almanac," with Garrison Keilleor
To hear really innovative radio: "Radiolab," with Jad Abumrad and Robery Krulwich
For great storytelling: "This American Life," with Ira Glass
To keep up with trends and issues in journalism: "On the Media," with Brooke Gladstone and Bob Garfield
Here's a link to: Five Podcasts Every Millennial Should Listen To