Every day we hear about viral marketing, a new viral video, or other content that spreads at the speed of light. But what exactly is it? And how did it get to be viral? Is it due to a viral product or viral advertising? Or is it simply luck that randomly makes something such a big hit?

This type of content usually has a well-designed viral strategy behind it, but virality is also due to luck, creativity, and preparation. To break down this concept, we’ll explain the definition, how a viral campaign works, the advantages of viral marketing, and show you some examples of successful viral marketing.