listen to a bbc broadcast about the impact of digital media
and then test drive an essay:
"NDM fragments audiences, pushing them into media ghettoes, where they simply engage with familiar forms of media and do not experience anything new". To what extent is this true?"

concepts to sprinkle into your essay:
globalisation (cultural imperialism, cross-cultural flow)
hegemony & media ownership; elite vs mass culture (Frankfurt school)
Gramsci, hegemony & consensus
pluralism and democratization
UGC, social media
flow theory & gatekeeping
Gaming, convergence, virtual reality & hyperreality
model essay here