Click fraud is currently a major topic in online advertising. Many argue that it presents a threat to the stability and viability of pay-per-click (PPC) advertising, the key revenue generator for both Google and Overture. In actuality, click fraud is not a significant issue at all.

Click fraud occurs when ads are clicked for reasons other than a genuine interest in learning more about the product or service advertised. Click fraud occurs in two forms. In one instance, fraud arises from competitors trying to sabotage each other. One competitor clicks on the ads of another just to drain the budget of that company. The other instance occurs when webmasters (or people associated with the webmaster) repeatedly click Google AdSense ads (which are syndications of others