Traditional advertising techniques include print and television advertising. The Internet has already overtaken television as the largest advertising market. Web sites often include the banner or pop-up ads. Social networking sites don't always have ads. In exchange, products have entire pages and are able to interact with users. Television commercials often end with a spokesperson asking viewers to check out the product website for more information. While briefly popular, print ads included QR codes on them. These QR codes can be scanned by cell phones and computers, sending viewers to the product website. Advertising is beginning to move viewers from the traditional outlets to the electronic ones.
In the parlance of digital marketing, advertisers are commonly referred to as sources, while members of the targeted ads are commonly called receivers. Sources frequently target highly specific, well-defined receivers. For example, after extending the late-night hours of many of its locations, McDonald's needed to get the word out. It targeted shift workers and travelers with digital ads, because the company knew that these people made up a large segment of its late night business. McDonald's encouraged them to download a new Restaurant Finder app, targeting them with ads placed at ATMs and gas stations, as well as on websites that it new its customers frequented at night.