The term 'ADS' by Google is an acronym for 'AdSense', a program that allows website owners to earn money by displaying ADS on their sites. AdSense is a product of Google's AdWords program, which allows advertisers to create and manage their own ADS. AdSense works by placing relevant ADS on websites, based on the content of the site. The ADS are then displayed to visitors, who can click on them to learn more about the product or service being advertised. AdSense also provides website owners with detailed reports on how their ADS are performing, so they can make adjustments as needed.