Abstract: A system and method for exchanging data in a controlled network provides each participant in an event with a data storage medium that can be accessed throughout the event in order to readily share data among the participants. Scan data for the data storage medium of each of the participants is recorded and relayed to an event host in real time. Additionally, the scan data is graphically organized and distributed to the participants following the event to facilitate continual contact between the participants. A user account accessed on a user controlled device is authenticated through the controlled network, such that event based advertisements determined by the event host can be delivered to the user controlled device. Authentication of the user account and distribution of each of the event based advertisements is facilitated by inserting either an authentication source code or advertisement source code into a webpage source code.