Before 2011, it was thought that the problem of online advertising fraud was more or less contained. Pay-per-click advertising was still experiencing huge growth, but much of the fraud activity and many of the practices had been seen and countered.
Google themselves have long since acknowledged the need to clamp down on fraud. Google is a business like any other; people need to trust them. For instance, they knew that if they failed to detect click-through fraud, then advertisers would lose faith in their brand. There’s nothing quite like a potential drop in profits to kick-start a company into taking action.
Bots, click farms and the like were treated as a priority for the company. And for good reason. Google used experts like Professor Alexander Tuzhilin to draw up best practices for preventing click fraud and things seemed to be working.
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