Abstract: Systems and methods are disclosed involving sharing data files amongst a group in a networked system. In a first embodied system and method, a user uploads a video file to a file sharing server over a network and the server makes the file available for access by a group of users. In a second embodied system and method, the user shares a file with the group of users using a peer-to-peer model. The systems and methods may be operated in conjunction with a separate social networking system, in which case certain features may operate jointly, such as user authentication. Even if the file sharing server or social networking system are not involved in the actual file transfer, each may be used to facilitate group generation, group information storage, file preview storage, file availability notification, messaging, user verification, and other features.