14. Marketing :: Today Key Influencers typically have their own blogs, huge twitter followings and rarely know their audiences personally. They have a direct influence on brand affinity and purchasing decisions. Social Influencers are everyday people who participate in social platforms. They influence brand affinity and purchasing decisions through consumer reviews, status updates, and blog comments. Known Peer Influencers are the closest to both the purchasing decision and the consumer. They are family members or part of the consumer’s inner circle. They influence purchasing decisions most directly and have to live with the results of their family member of friend’s decision as well. Welcome to Social Media ::