<https://data.wordlift.io/wl82989/entity/digital_marketing>
<http://schema.org/description>
"Digital marketing is the component of marketing that utilizes internet and online based digital technologies. It is often referred to as Internet Marketing"
<https://withjasonbarnard.com/2019/yoastcon/four-horsemen-of-the-apocalypse-rand-fishkin/>