The UMass Lowell chapter of MASSPIRG is active in promoting the use of OER materials for students. I fully agree that it's worth a try for any course. I'm happy to have been recognized by them at this year's inaugural OERscars awards ceremony for Applied Discrete Structures. The good news for UML students is that there were faculty from every college recognized for developing and/or using OER materials for their courses. Congratulations to all OERscar winners!