Digital marketing activities are search engine optimization (SEO), search engine marketing (SEM), content marketing, influencer marketing, content automation, campaign marketing, and e-commerce marketing, social media marketing, social media optimization, e-mail direct marketing, display advertising, e–books, optical disks and games, and any other form of digital media. It also extends to non-Internet channels that provide digital media, such as mobile phones (SMS and MMS), callback and on-hold mobile ring tones. The fundamental concept in digital marketing is based on the inbound marketing approach or generally it’s called customer centric approach.
According to the Digital Marketing Institute, Digital Marketing is the use of digital channels to promote or market products and services to consumers and businesses.
(Source: Wikipedia )