The traditional way to make a decision was to listen to--and act upon--the views of 'opinion leaders' in our world. The age of those influential individuals is coming to an end. As a society, we no longer lean on our family minister, doctor, or company executive as the highest authority for guiding our life decisions. Somehow, they no longer seem credible or all-knowing. Our everyday decisions are influenced by 'opinion packages,' such as the groups we join or brand names we buy.
A new company named Community Analytics has a data-based approach for identifying and exploiting the relationship branches stemming from the small set of opinion leaders I say are obsolete.