XdbE aims to connect disparate social networking services by providing a unified user database. It would allow user data to be propagated across services in real-time, providing a complete universal social graph. Currently, individual services like Facebook and Twitter are only loosely connected. XdbE's centralized database would contain non-private user profile data and connections between user accounts on different services, addressing inefficiencies of alternatives like Google Open Social API that rely on direct requests between services. This would let users stay connected to all of their social networks and see updates from friends on any service.