Fraud Costing $1 billion U.S. a year to Google
Google pays to the site operators for placing its adds on there sites and pay them according to the clicks undergone. But since this Google’s AdWords program has launched it has been under constant criticism, including advertisers asking for a clear picture of the effectiveness of their ads.
Google has declared that These fraud are costing about $1 billion U.S. a year to Google. People are using special software to click an ad repeatedly to inflate a rival’s advertising cost or to fraudulently boast a site operator’s own revenue.
To protect its advertisers, Google uses various way to detect and sieve out invalid clicks. Google does not charge its advertisers, nor pay site owners, for invalid clicks.