Everything in Moderation: The Effects of Adult Moderators in Online Youth Communities -- Introductions and Requests: Rhetorical Strategies That Elicit Response in Online Communities -- Rhythms of Social Interaction: Messaging Within a Massive Online Network -- A Noun Phrase Analysis Tool for Mining Online Community Conversations -- Reflections and Reactions to Social Accounting Meta-Data -- Modes of Social Science Engagement in Community Infrastructure Design -- Workplace Connectors as Facilitators for Work -- Online and Offline Integration in Virtual Communities of Patients — an Empirical Analysis -- Life in the Times of Whypox: A Virtual Epidemic as a Community Event -- Communities of Practice in MMORPGs: An Entry Point into Addiction? -- Factors Affecting User Participation in Video UCC (User-Created Contents) Services -- A Socio-Technical Approach for Topic Community Member Selection -- Tracking Online Collaborative Work as Representational Practice: Analysis and Tool -- Implicit Many-to-One Communication in Online Communities -- Sharing Wireless Internet in Urban Neighbourhoods -- CommunityNetSimulator: Using Simulations to Study Online Community Networks -- Technology and Community Behavior in Online Environments -- Trust in Electronic Networks of Practice: An Integrative Model -- Embeddedness and Media Use in Networks of Practice -- Enriching Community Networks by Supporting Deliberation -- Models of Government Blogging: Design Tradeoffs in Civic Engagement -- Tuning In: Challenging Design for Communities through a Field Study of Radio Amateurs -- Analyzing the Dynamics of Community Formation Using Brokering Activities -- A Relational Scaffolding Model of Hybrid Communication -- Advice Networks and Local Diffusion of Technological Innovations -- World Wide Webs: Crossing the Digital Divide through Promotion of Public Access -- High Tech Programmers in Low-Income Communities: Creating a Computer Culture in a Community Technology Center.