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. Content Marketing Institute contributor Aleh Barysevich has published an article featuring six influencer marketing metrics to watch and five tools to help. He says, “Tracking influencer key performance indicators (KPIs) requires structuring a program that uses metrics to identify influencers. It incorporates the most valuable success metrics and uses tools to help... [...]