What is digital marketing and which channels can a company use?

Digital marketing is the system that connects objectives, messages, channels and data throughout the customer relationship.

Digital marketing includes every activity that uses digital environments and signals to create demand, capture it, facilitate a decision or maintain a relationship. Some activities produce immediate results, while others accumulate value over time. The distinction matters when allocating budget and people.

Which activities does digital marketing include?

Search includes SEO and search engine advertising. Social media supports distribution, conversation, communities and advertising. Email, newsletters, SMS and notifications maintain direct contact, provided consent and frequency are managed correctly. Display, native and programmatic advertising buy visibility in digital spaces. Affiliate and influencer marketing involve external parties in distribution.

Not every company needs all these activities. A manufacturer with few potential customers may gain more from search, technical content and targeted email than from a constant presence on five social platforms. An ecommerce business might instead combine paid search, creators, retargeting and behaviour-based automation.

This journey explores the tools without turning them into universal recipes. Each chapter explains its function, conditions, metrics and risks.

How do you choose a digital channel?

Start with the customer journey. Where does the need arise? Where are alternatives compared? What evidence reduces risk? At what point will the customer accept direct contact? The answers narrow the field far more effectively than a ranking of the most popular platforms.

Then assess five criteria: access to the audience, compatibility with the message, speed of learning, total cost and internal capability. Cost is not the same as media budget. It includes production, technology, analysis, coordination and the time required to learn.

A channel may offer broad reach but require a creative cadence the team cannot sustain. Another may generate few contacts, but ones that are much closer to a decision. Comparison makes sense only against the same objective.

Owned, paid and earned channels

Owned channels include the website, contact database, app and newsletter. They offer greater control, but building an audience and trust takes time. Paid channels buy distribution and speed; they generally stop producing visibility when investment stops. Earned channels come from mentions, shares, reviews and recommendations, so they depend on the quality of the experience and credibility.

A robust strategy does not choose only one category. It uses paid media to reach or test, owned assets to explain and convert, and earned trust to reduce perceived risk. If everything depends on an external platform, a change in cost or rules can put the whole system under pressure.

How can you avoid a collection of disconnected activities?

Assign every channel a primary function, audience, expected behaviour and decision metric. Clarify its relationship with other touchpoints too. An ad may generate a visit, but the page, evidence, follow-up and sales process determine what happens next.

Review the portfolio regularly. Distinguish a channel that is still learning from one that is structurally unsuitable. Avoid stopping too soon or continuing because “everyone does it”. Digital marketing becomes useful when it enables faster, verifiable choices, not when it multiplies accounts and reports.

By the end of the journey, you should recognise where each tool can contribute, which dependencies it requires and what risk it introduces. The final question will not be “which platform are we missing?”, but “which part of the customer journey must we improve, and with what sustainable combination?”

How do you assign a role to each channel?

For every channel, complete three elements: audience, task and next step. Search can capture demand and lead to deeper content; email can help a consenting contact evaluate; video can show what text makes difficult to imagine. If two channels have the same description, the plan probably does not distinguish them clearly enough.

Define who owns the message, distribution, destination and measurement. Many journeys break because the ad is optimised separately from the page or because the CRM does not return information about lead quality. Shared responsibility must not become undefined responsibility.

Review the system at regular intervals. Channels, costs and behaviour change, but novelty does not automatically deserve investment. First determine whether it solves a recognised task more effectively or merely adds complexity.