1. A method of determining media value of an entity of interest comprising: calculating a media value based on a frequency of instances of the entity included in one or more documents, wherein calculating the media value is based on a sentiment associated with the instances of the entity included in the one or more documents, wherein calculating the media value comprises: determining a weighted value attributed to the entity; determining a total number of references to the entity in the one or more documents; multiplying the weighted value attributed to the entity by the total number of references to the entity in the one or more documents to generate a weighted entity reference value; determining a weighted value attributed to a negative polarity for the instances of the entity in the one or more documents; determining a total number of references to the entity having a negative sentiment polarity; and multiplying the weighted value attributed to the negative polarity by the total number of references to the entity having the negative sentiment polarity to generate a negative entity reference value.