Designing Social Media -- Utilizing Virtual Worlds for Personalized Search: Developing the PAsSIVE Framework -- Enabling Continuous Emotional Status Display in Mobile Text Chat -- 3D Virtual Worlds: An Ethnography of Key Artifacts and Processes -- Text-Mining of Hand-Over Notes for Care-Workers in Real Operation: Toward an Employee-Driven Innovation -- Talking Circles: Spiritual Aid for Teenagers Through Social Media -- Social Media Participation: A Narrative Way to Help Urban Planners -- Using Information Visualization Techniques to Improve the Perception of the Organizations' Image on Social Networks -- Designing a Social Mobile Platform for Diabetes Self-management: A Theory-Driven Perspective -- Providing ICT Support to Promote Communities' Emotional Balance -- User Modeling on Social Media for Art Museums and Galleries -- Social Media and Higher Education: A Literature Review -- Social Network Analysis -- An Analytic Study on Private SNS for Bonding Social Networking -- Simulation-Based Prediction and Analysis of Collective Emotional States -- Analysing Yammer Usage Pattern in the Context of Social Collaborative Activity Performance by Knowledge Workers -- Ensemble Selection for Community Detection in Complex Networks -- Analysis of Online Social Networks Posts to Investigate Suspects Using SEMCON -- Language-Independent Sentiment Analysis with Surrounding Context Extension -- Hashtag Popularity on Twitter: Analyzing Co-occurrence of Multiple Hashtags -- Individual and Group Behaviour in Social Media It's Not About the Risks, I'm just Used to Doing It: Disclosure of Personal Information on Facebook Among Adolescent Dutch Users -- Interaction Study of Shuriken: User Grouping and Data Transfer Based on Inter-device Relative Positioning -- Are Social Media Useful for Managing Reputation Online?: Comparing User Interactions Online with Reputation Indicators -- Investigating Usability and User Experience from the User Postings in Social Systems -- A Computational Study of How and Why reddit.com was an Effective Platform in the Campaign Against SOPA -- Inter-Social-Networking: Accounting for Multiple Identities -- Identifying Collaboration Strategies in Scientific Collaboration Networks.