A social media influencer is someone who has established credibility in a specific industry, has access to a huge audience and can persuade others to act based on their recommendations. In fact, influencer marketing is fast evolving to become a key tool in a company’s arsenal when done right. After all, influencers have the tools and authenticity to attract visitors consistently and can motivate others to expand their social reach. They may be anyone from a blogger to a celebrity to an online entrepreneur and capitalize on a niche to attain widespread credibility.