The document discusses the thrills and chills of using open educational resources (OER) for teaching. It identifies several thrills of OER including the large variety of free educational materials available, the ability to provide free resources to students, and the ease of customizing materials. Some chills of OER are the time required to search for appropriate materials, the need to carefully understand copyright licenses, and the technical skills required to incorporate various media types from different sources. In conclusion, OER are presented as providing great opportunities for educators but also challenges around copyright and technology.