Also a recent query log study [47] seems to hint at this. Thus, it is not enough to provide users with a high-quality result list; they also need tools that help in making sense of, structuring and manipulating search results and sources for restructuring and tuning their knowledge structures, that is, processing the expected outcome of the search. This matches Kuhlthau’s idea of providing support both in accessing sources and in construction process [1]. These findings provide system design with new challenges. It would be important to create tools that support, for example, structuring the result list according to the potential conceptual structures in documents, and restructuring the list by clicking desired concepts to combine them. This would help users to explore the conceptual space in documents in relation to their insufficient conceptual structures. Also the type of information in documents (e.g. general background information, concepts, procedural information, facts, etc.) would be a useful categorization of search results when users proceed through their task according to Kuhltau’s model [1, 29]. There is also an urgent need to develop tools that support users to interact with sources for constructing an end-product by structuring and manipulating information in those sources. There are already attempts in educational psychology to develop and evaluate cognitive personalization technologies to support students’ sense-making [50].