The research data infrastructure in the social, behavioral, educational, and economic sciences is characterized by a broad, diverse, and ever-expanding range of available datasets. However, their reuse potential depends not only on the respective data access, but also on the extent and quality of support for researchers in dealing with these data. Classical tools here range from documentation materials and research tools to training courses, tutorials, hotlines and FAQ lists. However, these services are 1) very heterogeneous in scope and usability, 2) generally tailored to a specific data product, 3) only partially transparent, and 4) in many cases not permanently available. A fundamental problem is also the purely bilateral interaction, which neglects the enormous potential of an exchange of knowledge and experience within the community of data users.