The Big Think site brought this video to my attention. As this is a teaching blog, I think it is worth watching, if you are unfamiliar with this notion of who pays and what are the most sustainable models of open access.
Panelists: Mike Rossner, Executive Director of the Rockefeller University Press; Ivy Anderson, Director of Collection Development and Management at the California Digital Library; and Bettina Goerner, Manager, Open Access for Springer.Date: March 9, 2010 Sponsor: Columbia University Scholarly Communication Program