Now you are in the subtree of TECHNOLOGY and MARKETS public knowledge tree.

Google Search

https://en.wikipedia.org/wiki/Google_Search

paper 1 - famous The PageRank Citation Ranking: Bringing Order to the Web from 1998

paper 2 - The Anatomy of a Large-Scale Hypertextual Web Search Engine

MUM: A new AI milestone for understanding information

PageRank (Google)