Exploring Semantic Tagging with Tilkut
Social bookmarking is one of the earliest examples of social media services. In bookmarking services there are two main approaches for adding metadata: user-generated freely chosen tags and keywords based on taxonomies or semantic ontology. This chapter presents a social bookmarking service Tilkut that combines the benefits of both of these approaches. Tilkut utilizes both freely defined tags and semantic tag suggestions based on predefined ontology. This chapter describes two different versions of the service and user experiences from a small scale user study and long-term test use in real context. Work related knowledge sharing was selected as a primary use case for the second version. The results from the first user studies were used as the starting point when developing the second version of Tilkut. A survey and workshop were organised to get more information of the requirements for enterprise use. In this chapter, we explain our approaches to adding semantics to social bookmarking, present the experiences, and discuss future research directions.