What is actually meant by a health insurance exchange and how might it work? Watch this e-forum, with slides and audio, of a May 11, 2009 Commonwealth Fund/Alliance for Health Reform briefing featuring Nancy Turnbull, Harvard University; Richard Curtis, Institute for Health Policy Solutions; and Linda Blumberg, Urban Institute. Ed Howard of the Alliance for Health Reform and Cathy Schoen of The Commonwealth Fund moderated. Audio courtesy of KaiserNetwork.org.