Digital marketing is the component of marketing that
uses the Internet and online-based digital technologies such as desktop
computers, mobile phones and other digital media and platforms to
promote products and services. Its development during the 1990s and
2000s changed the way brands and businesses use technology for
marketing. As digital platforms became increasingly incorporated into
marketing plans and everyday life, and as people increasingly used
digital devices instead of visiting physical shops, digital marketing
campaigns have become prevalent, employing combinations of search engine
optimization (SEO), search engine marketing (SEM), content marketing,
influencer marketing, content automation, campaign marketing,
data-driven marketing, e-commerce marketing, social media marketing,
social media optimization, e-mail direct marketing, display advertising,
e-books, and optical disks and games have become commonplace. Digital
marketing extends to non-Internet channels that provide digital media,
such as television, mobile phones (SMS and MMS), callbacks, and on-hold
mobile ring tones. The extension to non-Internet channels differentiates
digital marketing from online marketing.