This paper presents a framework for the pervasive sharing of data using wireless networks. ‘FarCry’ uses the mobility of users to carry files between separated networks. Through a mix of ad-hoc and infrastructure based wireless networking, files are transferred between users without their direct involvement. As users move to different locations, those files are then transmitted on to other users in the new location. We examine three applications utilising this framework that depend upon this sharing. Each of these exploits the physically proximate nature of social gatherings. As people group together (such as in business meetings or cafés) this can be taken as an indication of similar interest (e.g. groups interested in the same presentation or type of music). MediaNet allows users to share media files between strangers or friends, MeetingNet shares business documents in meetings and NewsNet shares RSS feeds between mobile users. NewsNet also develops the use of pre-emptive cachi...