AI systems rely heavily on a select group of websites for information. Reddit leads by a wide margin, accounting for about 40% of domain citations, followed by Wikipedia (26%), YouTube (24%), Google (23%), Yelp (21%), Facebook (20%), Amazon (19%), Tripadvisor (12%), Instagram (11%), and Quora (5%).

In a recent analysis by Insider Monkey, Reddit users' opinions were aggregated to rank countries based on the perceived beauty of their female residents. The rankings were determined by the number of upvotes each location received in relevant Reddit discussions.