Today the development, sustaining and support of open educational resources are funded by institutions, private foundations, consortia, non-profits and commercial entities. Never has the open economic ecosystem been as healthy and diverse. Still, many of the economics models are not explicitly understood and are fairly unproven. This session will explore the funding sources and models supporting OER, map those to traditional models for sustaining and enhancing educational materials, and identify both the opportunities and risks in the current models.