In one embodiment, a method comprises establishing, by an IP-based meeting server via an IP network, a web-based media conference between an identified meeting presenter having a web-enabled presenter client device and identified meeting participants each having at least one corresponding participating client device; receiving, by the IP-based meeting server, monitoring data for each of the identified meeting participants, the monitoring data including, for each identified meeting participant, a detected interaction by the corresponding identified meeting participant with the corresponding participant client device; generating, by the IP-based meeting server, an aggregate attention metric identifying an aggregate focus of attention by the identified meeting participants, based on the received monitoring data; and outputting, by the IP-based meeting server, the aggregate attention metric for display by the web-enabled presenter client device of the identified meeting presenter.