| http://www.w3.org/ns/prov#value | - ultural, social, personal, and psychological factors) ??? ??? ??? Opinion Leader person within a reference group who, because of special skills, knowledge, personality, or other characteristics, exerts social influence on others. ??? ??? ??? Buzz Marketing Cultivating opinion leaders and getting them to spread information about a product or service to others in their communities ??? ??? ??? Lifest
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