This was an all-day debate between David Wiley and myself on topics related to open content and the commercialization of learning resources. Topics covered include: What are OERs and Why do we want Them? What's Our Objective Here? Providing Learning vs Supporting Learning. Perspectives on OERs: Users and Producers. OERs Created by Providers vs. Created by Community. It was webcast, attended by about 20 people, and converted into a book. Reaction posts by David Wiley, Martin Weller. Original Audio: Part 1, Part 2, Part 3, Part 4.