One more model: the guys at Partially Examined Life used their content-rich philosophy podcast to build a participatory community of listeners. Now you can pay

One more model: the guys at Partially Examined Life used their content-rich philosophy podcast to build a participatory community of listeners. Now you can pay a subscription to be a P.E.L "citizen" which gives you the chance to participate in "not school" seminars with other citizens. Also, of course, access to their back catalog which is behind a paywall. George Hrab leaves his 400+ episode Geologic catalog open, but pushes a subscription fee: be a "geologist" to get a weekly email and access to other subscriber-only material.