One of the biggest threats to the continued growth of Search Advertising is the increasing plague of click fraud. Although there are varying forms of click fraud, most people define it as any click generated, and paid for, where the intent is to drain the advertiser’s budget. Advertisers know some clicks are more qualified than others, and not every visitor from their PPC campaigns will convert to a customer. But, they have a right to expect that the traffic they are paying for is coming from .