The search giant! The name is connected most stringly with Google search and the company was built on the success of the PageRank algorithm. However, the business now involves many aspects including AI.
Used in Chap. 1: page 7; Chap. 2: page 23; Chap. 8: page 123; Chap. 12: page 198; Chap. 16: page 259; Chap. 17: pages 274, 277; Chap. 20: page 338; Chap. 23: pages 384, 392; Chap. 24: page 401
Links:
about.google: Google's own 'about' page