1. A method of analyzing a community of social networking service users to identify one or more influential users within the community, the social networking service providing a platform enabling a user within the community to communicate with at least one other user within the community, the method comprising acts of: (A) employing at least one computer processor to determine a contribution to a first user within the community by at least one second user within the community, the contribution by each second user being defined at least in part by an affirmative step having been taken by the second user with respect to a communication by the first user received by the second user; and (B) employing at least one computer processor to calculate an influence score for the first user based at least in part on the contribution to the first user by each of the at least one second user.