Spencer Michels reports on the economic and technical success story behind the Google search engine.

GOOGLE is the most frequently-used search engine in the world, and its founders met by chance before kickstarting the $110.8billion company 21 years ago. But who founded it and what don't we know ...

1998-2001: Primary Search For the first few years, Google was primarily a search engine with hardly any extra features.

Google: Search Engine, Inventor - 07/03/2006Larry Page and Sergey Brin started Google as a graduate-school project run from a Silicon Valley garage. Since then, the project-turned-$120-billion ...