1. A computer-implemented method, comprising: receiving a search request from a client, the search request directed to user generated content; retrieving relevant user generated content, wherein retrieving comprises searching processed user generated content, and wherein processing user generated content comprises receiving first input data including text; creating a substring of text from the first input data and categorizing the substring to produce a first concept associated with the substring, wherein the substring is categorized according to one of data dictionaries or pattern analysis; creating data dictionaries, concept classification categories, and mapping rules for categorization by analyzing linguistic patterns in the substring of text; assigning an indication of sentiment to the first concept associated with the substring by determining the nature of one or more secondary concepts in neighboring text and the ability of one or more secondary concepts to influence sentiment of the first concept; assigning an indication of influence to the first concept associated with the substring by determining the nature of the one or more secondary concepts in neighboring text and the ability of one or more secondary concepts to have their sentiment influenced by the first concept; and displaying the relevant user generated content based on the indication of sentiment and the indication of influence.