<p><strong>Applications</strong>, including Social provenance, Sociotechnical systems, including applications such as healthcare and smart cities,  Participatory decision-making in communities,  Business processes,  Services,  Software engineering; <strong>Paradigms</strong>, including: Contracts, Argumentation, Collaboration and teamwork, Social networks, Crowdsourcing, Collective intelligence;  <strong>Models</strong>, including: Social expectations and norms; Social relationships, Culture, Regulations, Protocols; <strong>Realization</strong>, including: Social middleware, Distributed knowledge bases, Social software, Social sensing, Cloud Computing;  <strong>Challenges</strong>, including: Identity, Trust, Compliance and accountability, Privacy, Security, Governance;</p>