Overall, publishers get 68% or 51% when they use AdSense to reach them. Now that we've looked into exactly how Google Ads works, you can see why “it depends” is a practical answer to the question: “How much does Google Ads cost?” This advertising program was launched in mid-2003 by Google and is currently the most popular advertising program on the Internet. A PPC agency, such as WebFX, develops, launches and manages your paid advertising campaigns on platforms such as Google Ads and Microsoft Advertising, in addition to helping to improve your Google Ads optimization score.