Google at 20: how two 'obnoxious' students changed the internet

It is two decades since Larry Page and Sergey Brin moved their fledgling startup out of their dorms. With threats to its power growing, how long can the company dominate?

In the summer of 1995, a second-year grad student called Sergey Brin was giving a tour of Stanford University to prospective students. Larry Page, an engineering graduate from the University of Michigan, was one of those being shown around the Palo Alto, California campus.

"I thought he was pretty obnoxious," Larry Page said of the encounter. "He had really strong opinions about things, and I guess I did, too."