The new Campfire integration by Datadog allows teams to share information and resolve performance issues quickly through their chat rooms. By mentioning @campfire-room_name in Datadog, users can send alerts or share graphs and comments with the team. This helps keep everyone updated on performance problems and enables sharing of Datadog graphs for better understanding. Automatic alert sending to Campfire is also possible by adding the chat room to the notification list of any alert or mentioning it in the body of the alert message.