Google AdWords is a paid advertising service which was developed by Google .Google AdWords used to charge the advertisers to place their websites at the top and down the right side of every Google search for grabbing the search users attention first. If advertisers want to improve sales and to maintain good relations with your costumers Google Adwords are very much useful. with help of Adwords marketing campaigns you can increase traffic to the website this will help your website to grab top position in the search result.there is no specific cost for this it depends on number of clicks.for each click you have to pay. Google making 90% of the revenue from Google Adwords.this will tell you how Adwords plays a crucial role in digital marketing compare to traditional marketing. Like Google Adwords, other search engines like Bing have their own platforms.