French Polymath Michel Serres is less well known in Media Studies criticism than perhaps he should be. His work is extraordinary in its blend of science and poetics, and his writing style is often difficult just because his flights of fancy are often so strange.
For students of media, his work on messengers (Hermes/Mercury or Angels) and his work on parasites is especially useful, and a little goes a long way. A single idea gleaned and understood from Serres is a rich vein to mine for inspiration
By thinking about parasites and/or angels in terms of the media, it’s possible to come to an understanding of exactly what it is that the media does to the messages transmitted and received. For advanced work, go beyond the medium itself, and discuss the messengers/parasites/angels within media texts themselves.