Influencer Marketing: Definition and History
What is influencer marketing? Learn how brands use social media personalities to promote products and how this industry has grown into a billion-dollar market.
Influencer Marketing Explained
Influencer marketing is a form of social media marketing involving endorsements and product placement from influencers, people and organizations who have a purported expert level of knowledge or social influence in their field.
How It Works
Influencers content includes testimonials or third-party endorsements. It essentially acts as a modern-day "word of mouth" marketing scale. Because followers often trust the influencers they follow, they are more likely to buy products recommended by them.
Types of Influencers
- Mega-influencers: More than 1 million followers. Often celebrities. High reach but often lower engagement rates.
- Macro-influencers: 100,000 to 1 million followers. Often gained fame through the internet itself (vloggers, bloggers).
- Micro-influencers: 10,000 to 100,000 followers. Higher engagement rates and more niche audiences.
- Nano-influencers: Less than 10,000 followers. Very high engagement and trust within a small community.
Regulations
As the industry grew, governments began regulating it to protect consumers.
- FTC Guidelines (USA): In the United States, the Federal Trade Commission requires influencers to clearly disclose paid partnerships (often using #ad or #sponsored).
- ASA (UK): The Advertising Standards Authority enforces similar rules in the UK.
Growth
The value of the influencer marketing industry has more than doubled since 2019, growing from around 6.5 billion U.S. dollars to 16.4 billion U.S. dollars in 2022. Instagram remains a primary platform for this type of marketing, though TikTok has seen rapid growth.
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