Pay Per Click (PPC) is an advertising tool used on the Internet. There are a number of companies offering this service but the best known at the moment are Google, Yahoo and MSN.

They all work in a similar way and allow the advertiser to create a small advertisement which is then displayed next to the search results when specific keywords are used or on partner sites related to the product or service you are selling.

The main advantage to the advertiser is that you only pay when someone clicks on your advertisement and visits your site. You are also able to impose strict budgets that enable you to control your advertising spend.