Click fraud involves the process of intentionally clicking ads listed on your website for the purpose of earning money rather than intending to view the products of the advertiser. Adsense involves placing ads on your website for other businesses. The way your website makes money is determined by the number of clicks to the advertiser's link. Most websites who participate in Adsense are honest. However, the issue of click fraud is happening more often on the internet as the owner's of some websites have found it an enticing method of generating more money from the advertisers.