By selling the software it creates and commisions that advertisers pay to keep their advertisements on Google (and that is why there are sponsored links).
the annual revenue of the google website is 300 million per year
From Ads.
The sale of advertisements.
6 billion a year
To find information about Google revenue, one can visit the Google website. Other websites that offer this information are: Wikipedia, PC World, The Motley Fool and Press Gazette.
Google "List of largest companies by revenue."
The sale of advertisements
Google's revenue comes from it's Paid Search and Banner Advertising services. These services accounted for about 97% of Google's revenue in 2008 according to their 2008 Financial Statements. Read more on their Investor Relations Blog: http://investor.google.com/releases/2008Q4_google_earnings.html
Google share 68% of the adsense revenues with the publisher.
Google Adwords is an advertising product which pay-per-click advertising. Google Adwords, which was launched October 23, 2000, is Google's main source of revenue.
Freedom of information for everyone, while generating advertising revenue.
Media.