How do societies exchange normative ideas? Does the telly affect what we think is right?
If we want to consider, in books, what the 'republic of letters' brings about ( we usually link it to the emergence of the Enlightenment ), what does publishing, in its varied forms, including electronic media, bring about today?
There are lots of small enclaves in whatever the 'republic' is today (and that's not even a particularly relevant term anymore, though it does conjure that sense of a shared socially constructed view of an imagined world made real).
Cultivation theory seems like a good place to set out from, even if only to kick it to death in the process.