This workshop aims at bringing together researchers and practitioners from different disciplines to explore the challenges and opportunities of applying social media to designing novel applications of collective intelligence, with a special focus on crowdsourcing and human computation. By emphasizing practical challenges and experiences with real-world applications, the workshop will stimulate the discussion on best practices in this quickly growing field. Based on the successful experience of the previous workshop SoHuman 2012, this workshop will consider crowdsourcing and human computation in the broader context: as specific instantiations of collective intelligence and social computing on the web. The goal is to identify how experience gained from the design of crowdsourcing applications can inform the development of new approaches to collective intelligence, and vice versa: what lessons from the broader domain of collective intelligence can inform the design of new kinds of systems for crowdsourcing and human computation?