Abstract: Systems and methods are disclosed for characterizing one or more users accessing a plurality of web pages. In an embodiment, a social sharing graph is generated based on the one or more log records. The one or more log records are indicative of the one or more user activities. A first and a second score are assigned to preferably each of the one or more users in the social sharing graph based on the one or more log records. Finally, the one or more users are categorized in a first category and a second category based on the first score and the second score.

Abstract: A computer system for facilitating user connectivity in a computer network includes an attention manager, an identity manager, and an introduction manager. The attention manager generates data indicative of the current interests of the user. The identity manager manages data indicative of the interests of the user. The introduction manager provides a proactive contact, content, or commerce data recommendation for the dynamic introduction of contact, content, or commerce data to the user, and may also provide bilaterally secure introductions with other users.