10 Ways to Instantly Amplify the Social Proof of Your Marketing
Hubspot
APRIL 17, 2012
As I mentioned, reviews aren't the only marketing tool that can be classified as social proof. In an article about social proof , TechCrunch clearly identified 5 different categories of social proof: Expert Social Proof: Approval from a credible expert, such as an industry blogger or other authority. 5 Categories of Social Proof.
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