Tangentially related to this is SDF's Anonradio.
“All DJs on aNONradio.net are members of the SDF Public Access UNIX System Community. Please join our growing online community of free software authors, teachers, librarians, students, researchers, hobbyists, computer enthusiasts, artists, musicians, and the aural and the visually impaired. We fight for and promote the distribution and development of free software and the non-commercialization of the Internet.”
The focus of this is music rather than talk.