Sarah Arnquist, who runs Global Health Hub, writes in Harvard University’s Global Health Delivery Project blog about a Monday session at the American Public Health Association’s annual conference that discussed “[u]sing online communities to promote health and engage communities — of either professionals or patients.” As a member of the panel, Arnquist discussed GHDonline, “a platform of expert-led communities where health care implementers collaborate to improve the delivery of health care” and provide discussion through “virtual expert panels” to members of the GHDonline community, she says. “Each discussion is summarized into a ‘discussion brief’ that provides busy people a quick overview of key points and links to useful background research,” she writes and details some recent topics (10/31).