In the early days of the internet, a successful digital marketing campaign meant putting out some cool videos, along with some well-placed ads; today, that same campaign would have to not only have videos (and lots of videos, preferably), but also a strong social media component, carefully considered SEO strategy, strategic content, and PR mentions in media outlets and on popular blog... https://zenmedia.com/blog/the-best-digital-marketing-campaigns-of-all-time/