Abstract: Systems, apparatuses, and methods obtain and process data that may be used to identify or discover one or more “influencers” in business, finance, fashion, sports, current events, and other areas, and also to generate an indication of each influencer's expertise and ability to influence others with their posts or comments. A measure of each influencer's accuracy with regards to the contents of their previous comments or posts may also be generated. Based on determining the sentiment associated with each influencer's current posts or comments, an index or measure of the accuracy weighted sentiment expressed by a set of influencers with regards to an event, stock, trend, or other aspect may be generated and presented to a user to assist them in making a decision.