Google Ad-words is a service of advertising by Google for business. This ad-words program enables when user click on the ad from goggle. Ad-words offers pay-per-click (PPC), cost-per-click (CPC) advertising, cost-per-acquisition (CPA) , cost-per-thousand-impressions or cost per mille (CPM) advertising. If your adwords clicked by user then it would directed to your website.
Ad-words program includes local, national and international program.