Abstract: Structures within a service controller portion of a collaboration system collect and store content captured by a client service module operating within each collaborator's computing device. From commands received from a collaboration director's portable computing device, the service controller selects individual collaborator computing devices from which to capture screen content at selected rates. Collaborator content is sent to the director's portable computing device to be monitored by the director. Under command from the director's portable computing device, the service controller may also send collaborator content to a public display computing device. The collaboration director may designate one or more collaborative participants as “live presenter(s).” A live presenter's screen content may be captured and publicly displayed at higher frame rates and in real time in order to simulate a white board or slide presentation.