Ad blocking or ad filtering is a type of software that can remove or alter advertising content from a webpage, website, or a mobile app. Ad blockers are available for a range of computer platforms, including desktop and laptop computers, tablet computers and smartphones. A variety of methods have been used for blocking advertisements.

Ad extensions are additional pieces of information that can be added to Google Adwords ads, including reviews, address, pricing, callouts, app downloads, site links, and click-to-call.

Ad Network – A grouping of websites or digital properties (like apps) where ads can appear. For example, Google has 2 ad networks: the search network (text ads that appear in search results) and the display network (image ads that appear on millions of websites that have partnered with Google).

Adsense is a program run by Google that allows publishers in the Google Network of content sites to serve automatic text, image, video, or interactive media advertisements, that are targeted to site content and audience. These advertisements are administered, sorted, and maintained by Google.

Advertising is a marketing communication that employs an openly sponsored, non-personal message to promote or sell a product, service or idea. Sponsors of advertising are typically businesses wishing to promote their products or services.

Advertising is differentiated from public relations in that an advertiser pays for and has control over the message. It differs from personal selling in that the message is non-personal, i.e., not directed to a particular individual.

Advertising is communicated through various mass media, including traditional media such as newspapers, magazines, television, radio, outdoor advertising or direct mail; and new media such as search results, blogs, social media, websites or text messages. The actual presentation of the message in a medium is referred to as an advertisement, or “ad” or advert for short.

Google Ads (previously Google AdWords, before July 24, 2018) 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. Partner websites receive a portion of the generated.