What Hashtags Do and Why They Matter

Hashtags are more than social media decoration: they help people discover content, signal topic relevance, and organize conversations around a post, campaign, or community. In this lesson, learners will understand what hashtags do, how platforms use them, and why their value depends on context, audience behavior, and content goals.

We will focus on the fundamentals: discoverability, categorization, community participation, and campaign tracking. Later lessons in the course will cover how to research hashtags, choose the right mix, test performance, and manage hashtags for different platforms and campaign types.