A method and apparatus for providing the full spread social impact score of individual users on defined issues beyond their direct adherents via a novel social media website is described. A social impact score may be compared with that of other individuals to provide a social impact rating. For this it employs the novel means of an affiliation tree, which may include its negative counterpart, the razzy tree. The same method and apparatus can be used for determining the market impact score and rating for individual message placements.
Apparatus and Method for Measuring Social Impact