The topics of interest of the workshop include, but are not limited to: - What kind of Semantics-driven indexing and retrieval for Social Media? - User modeling or social profiling? - Semantics-based recommender systems for Social Media: is the dream coming true? - Web adaptation methods and techniques - Content on demand: customization or personalization? - Semantic context modeling and extraction - Semantic Models generation from social networks data - Semantically-enabled data filtering - Sentiment analysis in Social Networks - Opinion mining in Social Networks - Social Web Mining - Semantics of Collective Intelligence - Mobile social networking - Distributed semantic computing for social network data analysis - Collaborative filtering, mining and prediction - Social computing applications and case studies