Computer systems and methods, according to various embodiments, allow users with shared access to a shared file or folder to communicate with one another via online chat. In particular embodiments, the system is configured to facilitate a chat session among all users that have shared access to a particular file or folder in response to a particular user selecting a “chat” button (or other suitable chat initiation element) associated with the shared file or folder. After a chat session is complete, the system may archive the chat session for later viewing and use.