Guide to Google AdWords: It all starts with a search. Google AdWords is a great way to attract more people to your website that may not have found it otherwise.
It is a service where you ‘buy’ keywords from Google and when people search for those keywords your ad or website will appear bringing traffic and business to your website. Because the service is provided by Google, their analytics will tell you exactly how much traffic you are getting and how effective it is. See our Guide to Google Analytics
You only get charged if someone clicks the link provided by AdWords so you get what you pay for.