U.S., March 17 -- What is an influencer? An influencer is someone who has:

the power to affect the purchasing decisions of others because of his or her authority, knowledge, position, or relationship with his or her audience.

a following in a distinct niche, with whom he or she actively engages. The size of the following depends on the size of his/her topic of the niche.

Over the last decade or so, social media has grown rapidly. It is reported that there is over 3.8 billion people actively using social media. To put that into context, that is nearly 50% of the world's population. With mobile users at 5.19 billion, this number is more than likely to grow consistently.

Published by HT Digital Content Services with permission from Healthc...