A marketing strategy that encourages individuals to share a marketing message with others, creating exponential growth in the message's reach and influence. It relies on social networks and word-of-mouth to spread content rapidly and organically.
The term was coined by venture capitalist Steve Jurvetson in 1997, drawing an analogy to how biological viruses spread. The concept predates the internet (chain letters, referral programs) but found its perfect medium in digital platforms. The strategy gained prominence with early internet successes like Hotmail's email signature growth hack.
True viral content is incredibly rare and often unpredictable - most 'viral' campaigns are actually the result of significant paid promotion behind the scenes to achieve initial momentum. The most successful viral content typically evokes strong emotions (humor, surprise, anger) and provides social currency - people share it because it makes them look good or feel connected to something bigger.
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