Searching for data upon new, open, linked Web data sources has the potential of reshaping the scenario of current Web applications, going beyond the capabilities of conventional search engines in solving search problems, but also presents new technical challenges. Solving data integration problems requires new solutions, including the use of universal URIs, efficient indexing, partial or approximate value matching, rank aggregation, continuous or push-based search, exploratory methods and context-aware paradigms, collaborative and social search and information retrieval. The goal of this workshop is to gather researchers and practitioners in the diverse fields related to data integration and search applications on the web at the purpose of discussing innovative strategies for combining search facilities with integration aspects for Web data sources. The workshop represents a unique venue for discussing all the aspects related to the implementation, publication, and orchestration of services over new Web data sources, the most suitable paradigms to improve the user experience in context, as well as the search application scenarios which may better benefit of these new technologies, including enterprise applications, recommender systems, and social search.