Web 2.0 has introduced new style of information sharing featuring mass user participation, social networking, heterogeneity of data sources, and a huge scale of information and knowledge, posing difficulties in discovering relevant information. The Semantic Web may contribute by providing a language basis and ontologies to support structuring, or introducing new ways to explore the information space. This may be achieved by combining semantics from semantic web resources with structure of the sharing platforms (tags, social acquaintances etc.) and automatic content analysis tools. This workshop targets integration arising from the mining of Web 2.0 information, multimedia content and knowledge with help of the Semantic Web.