Key influencers on social media can significantly increase the reach of content, far beyond the followers of the original poster. An influencer who tweets a blog post to their 2,500 followers could generate over 10 million impressions, as the post is then shared and picked up by other major blogs and social networks, ultimately reaching over 14 million people total. Influencers are identified based on how fast, widely, and deeply they can spread content to their own networks and connections.