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 22; Chap. 8: page 114; Chap. 12: page 183; Chap. 16: page 240; Chap. 17: pages 255, 257; Chap. 20: page 318; Chap. 23: pages 361, 369; Chap. 24: page 376
Links:
about.google: Google's own 'about' page