Techniques for enabling users of a social networking application or service to share information and additional resources with other users of the service are provided. A content item from a first user of the social networking service is registered as a resource within the social networking service. In response to receiving a query for the content item from a second user of the social networking service, the availability of the resource associated with the first user is determined for use by the second user. A notification indicating the availability of the resource is sent to a device of the second user. The notification may include a current geographic location of the first user, which can be graphically represented on a digital map displayed at the device of the second user.