Here’s the breakdown of digital marketing again:

Online marketing

Search engine optimization (SEO)
Search engine marketing (SEM)
Content marketing
Social Media Marketing (SMM)
Pay-per-click advertising (PPC)
Affiliate marketing
Email marketing
Offline marketing

Enhanced offline marketing
Electronic billboards
Digital product demos
Digital product samples
Radio marketing
Radio commercials
Show sponsoring
TV marketing
TV commercials
Tele-shopping
Super Bowl commercials
Phone marketing
Cold calling
Text message marketing (giveaways, coupons, loyalty programs)
QR codes

marketing?
Digital marketing is advertising delivered through digital channels. Channels such as social media, mobile applications, email, web applications, search engines, websites, or any new digital channel.

marketing?
The offline and online world are colliding. Traditional devices such as fridges, ovens and even billboards will all be modernized to leverage digital media.

Why digital marketing matters?
Google and Facebook generate more revenue than any traditional media company because they control more eyeballs. That’s why digital marketing matters, it is where the attention is.

What channels make up digital marketing?
Search engines, social media, blogs, online ads, affiliate marketing, emails, and mobile apps.
Source: https://quickgetpay.com.ng/digital-marketing-made-simple-a-step-by-step-guide/