14. The computer-implemented method of claim 13 , wherein the first person represents a group of individuals, wherein the predicted opinion is returned along with the documents which reference the topic, wherein the predicted opinion is output, wherein evaluating the corpus further includes: parsing each document accessed from each secondary source to identify topics, concepts, or subjects referenced by the respective document from the respective secondary source; and determining indications of opinions on the topics, concepts, or subjects referenced by documents in the second collection.
13. The computer-implemented method of claim 12 , wherein evaluating the corpus comprises: identifying topics, concepts, or subjects referenced by documents in the first collection of documents; and determining indications of opinions expressed about the topics, concepts, or subjects referenced by documents in the first collection.