A Seattle locksmith has sued Google for click fraud for allegedly charging the company for clicks on paid-search ads that it believes were made by a competitor. This lawsuit appears to be the first of its kind in more than five years, when Google settled a class-action click-fraud lawsuit.

... at which time it received around 15 clicks a day...around 80% of the people who clicked through followed up with a phone call, according to the lawsuit.

Last March, however, 123 Lock began receiving between 100 and 150 clicks a day. "123 would often receive a flurry of clicks within a single minute," the lawsuit alleges. "These clicks never converted into phone calls. Because of the click fraud, 123 was forced to cease advertising on Google."