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. At its core, influencer marketing is the process of using external content creators, or influencers, to advocate and engage with your brand’s message. As part of this, the influencers present their content to their audience, increasing brand awareness and helping to convert their audience into your customers.