What I don't see often documented, but I think is equally prevalent, is corporate online disinformation/misinformation efforts. These companies often have much higher gdps than nation states, and their efforts seem more discreet, at least in the media.
Would greatly appreciate anything you have :)
Advertizing is so effective that much advertizing becomes normalized and then spread for free by other media.
Advertizing and corporate agendas also infiltrate films and television - this is such a huge area. Media studies at universities may look at it. Start digging and you will uncover quite a lot of reading material.
https://en.wikipedia.org/wiki/Conflict-of-interest_editing_o...