Google AdwordsGoogle Adwords Service or Google Ads is an online advertising platform developed by Google, where advertisers pay to display brief advertisements, service offerings, product listings, video content and generate mobile application installs within the Google ad network to web users. Google Ads’ system is based partly on cookies and partly on keywords determined by advertisers. Google uses these characteristics to place advertising copy on pages where they think it might be relevant. Advertisers pay when users divert their browsing to click on the advertising copy.
Also check : Facebook Advertising