Viral marketing or viral advertising is a business strategy that uses existing social networks to promote a product. Its name refers to how consumers spread information about a product with other people, much in the same way that a virus spreads from one person to another.

Viral content usually has a well-designed viral strategy behind it, but vitality is, in part, also due to luck, creativity and preparation. Viral marketing seeks to spread information about a product or service from person to person by word of mouth or sharing via the internet or email. Because it is one of the most effective types of marketing. You don’t have to spend large budgets on creating ads or getting them out there.