Social Media vs. Traditional Internet Use for Community Involvement: Toward Broadening Participation -- Leveraging European Union Policy Community through Advanced Exploitation of Social Media -- Genres of Participation in Social Networking Systems: A Study of the 2013 Norwegian Parliamentary Election -- Starting a Conversation: The Place of Managers in Opening Discussions in Communities of Practice -- The Role of a Political Party Website: Lessons Learnt from the User Perspective -- Conceptualising Trust in E-Participation Contexts -- Information Technology in eParticipation Research: A Word Frequency Analysis -- New Ways of Deliberating Online: An Empirical Comparison of Network and Threaded Interfaces for Online Discussion -- Engaging Citizens in Policy Issues: Multidimensional Approach, Evidence and Lessons Learned -- A Goal Matching Service for Facilitating Public Collaboration Using Linked Open Data -- Evaluation of an E-participation Project: Lessons Learned and Success Factors from a Cross-Cultural Perspective.