The Filter Bubble — Eli Pariser (2011)

Eli Pariser's The Filter Bubble: What the Internet Is Hiding from You identified a decade before it became mainstream public concern the way that personalisation algorithms on search engines and social media progressively narrow the information users are exposed to, creating individual "filter bubbles" that reinforce existing beliefs and eliminate exposure to contradictory views. His term "filter bubble" has become the standard vocabulary for algorithmic polarisation.