The 2 main pillars of digital marketing are online marketing and offline marketing. That said, since I’ll talk about online marketing in a separate guide, I’ll only mention the different areas of online marketing here for the sake of completeness.
The 7 big categories of online marketing are:
- Search engine optimization (SEO)
- Search engine marketing (SEM)
- Content marketing
- Social Media Marketing (SMM)
- Pay-per-click advertising (PPC)
- Affiliate marketing
- Email marketing
Unbounce created a great infographic that sums up all kinds of online marketing in one neat chart.

The beginner’s guide to online marketing, on Quick Sprout, is a great place to get started.