Social Network Mining Tools.- An Overview of Methods for Virtual Social Networks Analysis.- Discovering Sets of Key Players in Social Networks.- Toward Self-Organizing Search Systems.- DISSECT: Data-Intensive Socially Similar Evolving Community Tracker.- Clustering of Blog Sites Using Collective Wisdom.- Exploratory Analysis of the Social Network of Researchers in Inductive Logic Programming.- Information Flow in Systems of Interacting Agents as a Function of Local and Global Topological Features.- Social Network Evolution.- Network Evolution: Theory and Mechanisms.- Vmap-Layout, a Layout Algorithm for Drawing Scientograms.- Nature-Inspired Dissemination of Information in P2P Networks.- Analysis and Visualization of Relations in eLearning.- Interdisciplinary Matchmaking: Choosing Collaborators by Skill, Acquaintance and Trust.- Web Communities Defined by Web Page Content.- Extended Generalized Blockmodeling for Compound Communities and External Actors.- Analyzing Collaborations Through Content-Based Social Networks.- Social Network Applications.- IA-Regional-Radio – Social Network for Radio Recommendation.- On the Use of Social Networks in Web Services: Application to the Discovery Stage.- Friends with Faces: How Social Networks Can Enhance Face Recognition and Vice Versa.