A method and a file networking system (FNS) transform a content file into a content-centric social network with managed connectivity and indexable touchpoints. The FNS injects a tracking code with widgets for user activities into each portable copy of the content file when user devices request access to the content file before distributing the portable copies to the user devices through a network. The FNS establishes a bidirectional communication with the distributed portable copies (DPCs) through the network to receive tracking information including user created touchpoints identified by the tracking code based on usage of the DPCs. The FNS indexes the touchpoints and creates a satellite internet of users of the DPCs based on invite information and usage of the DPCs. The FNS establishes communication between users of the DPCs in the satellite internet using the widgets through the tracking code and the indexed touchpoints, whereby grouping is automatically achieved.