Definition

Kaplan & Haenlein (2011) define viral marketing as “electronic word-of-mouth where a message spreads exponentially through user sharing and engagement.”

Introduction

A great idea can do what millions in ad spend can’t — go viral. Viral marketing thrives on emotion, simplicity, and shareability.

Explanation

1️⃣ Triggers – emotional content (humor, awe, shock).
2️⃣ Social Currency – people share what makes them look good.
3️⃣ Storytelling – clear, relatable, easily retold.
4️⃣ Platform Leverage – TikTok, Instagram, YouTube, or X.

Key Takeaways

Virality can’t be forced — it’s designed for spontaneity.

Positive emotions spread faster than neutral ones.

Timing and relevance amplify reach.

Real-World Case

ALS Ice Bucket Challenge (2014) blended purpose, fun, and social proof — raising $220M globally for charity.
Reference: https://www.als.org