Google

Google is a multinational technology company specialising in internet search related products and services, including advertising, cloud computing, software and hardware.

Google.com is the most visited website in the world, which is what gives Google its advertising leverage and revenue.

Google's mission is to organise the world's information and make it universally accessible and useful.

Advertising is the company's principle source of revenue. Google now makes hundreds of products from Youtube and Android, to Smartbox, Chrome and Gmail, to Google Search and Maps.