I really like the Cory Doctorow podcast, which usually start with a brief intro, followed by a short reading of sorts, and ending with a debrief of the reading. This week, Cory reads part 14 of this first novel (which I read years ago), and in the debrief, said something really interesting about GNU radio and SDR in general.
Here's a 2 minute snip of that podcast starting at 22:40 until the end:
Here's more about Skycircles in case you're curious.