Google makes $500 million a year on incorrectly typed webpages.
Newscientist reports that it is possible up to 68 million people could visit a typo site every day. A technique called typosquatting, registering misspelt URL’s, earns the registrant money through advertising which Google provides. Many would be familiar with the Ads by Google advertisements that litter many pages.
A study by Tyler Moore and Benjamin Edelman at Harvard University looked at 3264 .com domain names of the most popular sites on the internet and from that got statistics to extrapolate the amount of money that could be earned by Google through its advertisement network. The figure estimated is an outstanding $500 million.
The figure is a potential maximum Google may earn based on the research by Moore and Edelman and based on a worst case assumption scenario therefore the actual figure Google earns from typosquatting advertising may be much lower.
Google only said that it would remove its adverts if a a registered owner of a trademarked name makes a complaint but did not give any other details.