The papers in the Semantic and Social Web section of the proceedings investigate the use of publicly available data for building applications. Meusel et al. present an analysis related to structured product information available on the Web. Their work shows that an impressive amount of product information is available on the Web. However, despite numerous standardization efforts, heterogeneity is still a major problem. Zhou and Guo present an empirical study regarding the helpfulness of product reviews in social media. They show that there is a combined effect of text sentiment and rating that shows a better correlation to helpfulness than when considering the variables in isolation. Santos et al. finally investigate the use of Twitter data to derive insights on the Brazilian stock market and compare their insights with previous research on Twitter data from English-speaking users.