A method, system, and medium are provided for a global synchronization system (GSS). The GSS includes a global synchronization server and a network storage device. Content sources can be retrieved directly from the remote source, or optionally uplinked onto the network storage device. The content sources and user devices are defined, as well as the relationships of one endpoint to another, according to subscriber specifications, provided by the global synchronization system. The subscriber specifications are managed by the global synchronization server to provide synchronization of changes and updates to content sources and devices.