I listen to podcasts on the train (morning and evening commute) and also in bed when I can't sleep or am waking up in the morning:
I have some story podcasts:
The Drabblecast, Podcastle, Pseudopod and Escape Pod
Selected Shorts from WNYC, BBC Radio 4's Drama of the Week, and This American Life (ok, this is kind of journalism, but narrative journalism!)
Then I have Leo Laporte's This Week in Tech and Macbreak Weekly for computer/tech events
Friday Night Comedy from the BBC
And for sheer intellectual pleasure, Vincent Racaniello's microbiology and parasitology podcasts:
This Week in Virology, This Week in Microbiology, and This Week in Parasitism.
I also have some Autism podcasts:
18 episodes of AWA Radio from the Asperger Women's Association from June 6, 2009 through November 3, 2009.
An episode of an Australian podcast JOY 94.9's Allegro Non Troppo on Autism and Asperger's Syndrome--an interview with Dr Richard Eisenmajor.
An episode of Childhood Matters with GRASP's Michael John Carley
An episode of the Association of Family Therapists of Northern California's podcast on family therapy with Aspergers and Autism