How does Google make money?

According to a report released on April 21, 2008 from Millword Brown Optimor the total worth of the worlds top 100 brands is 1.94 trillion US dollars in 2008. Most interesting of all, the world's top brand today, worth over 86,000 million US dollars is Google! A brand that has now surpassed world leaders such as Coca Cola, Microsoft, Nokia, Marlboro, McDonalds and GE. What does this mean? Well, today, Google makes more advertising revenue than mainstream UK television channels such as ITV. According to a report from the UK Times Newspaper, Google generated over £325 million of advertising revenue between July and September 2007 -- surpassing that of ITV (even when taking into account advertising revenue from sporting events such as Rugby). Do these statistics indicate a potential future change in the way individuals interact with media? Is on-line the future of information dissemination and mass marketing?