The document discusses open educational resources (OER) and authoring digital learning materials using open licenses. It defines OER as educational materials that can be freely used and shared under open licenses. It outlines some limitations of traditional copyright and how open licenses like Creative Commons address these issues by allowing for reuse and modification with attribution. The document also demonstrates several tools and websites for authoring and finding OER materials, including LeMill, eXe, Wikimedia Commons, and Flickr. Metadata standards for OER are discussed to help materials be more discoverable.