Influencer

• (n.) One who, or that which, influences.
Found on http://thinkexist.com/dictionary/meaning/influencer/

Influencer

In'flu·en·cer (ĭn'flu* e n*sẽr) noun One who, or that which, influences.
Found on http://www.encyclo.co.uk/webster/I/55

Influencer

A subject matter expert who is vocal in an online community and respected for his or her opinion, and therefore has the capacity to shape the opinions of others.
Found on http://www-304.ibm.com/partnerworld/wps/servlet/ContentHandler/swg_com_sfw_
No exact match found