<https://data.wordlift.io/wl82989/entity/digital_marketing_strategy>
<http://schema.org/description>
"From Hubspot: A digital marketing strategy is a plan that helps your business achieve specific digital goals through carefully selected online marketing channels such as paid, earned, and owned media."
<https://withjasonbarnard.com/2019/yoastcon/four-horsemen-of-the-apocalypse-rand-fishkin/>