Joinup offers many advantages to different groups of users including the Public Administrations (lower development costs, dissemination of best practices, reusable solutions for free, powerful search tools, information exchange), the private sector (learning about Public Administrations’ needs, reference materials, development of better products), academia and citizens (eGovernment factsheets, studies, use cases). Through Joinup the European Commission promotes the European digital single market (interoperability solutions, better cooperation, more efficient public services).