This document summarizes the results of a Delphi study conducted with 12 experts on open educational resources (OER) in German-speaking countries. The study identified several challenges to adopting OER, including a lack of awareness, low availability of OER materials, and uncertainty around copyright issues. However, the experts also saw potential benefits to OER in supporting active learning and preventing a "digital divide." While adoption of OER is not widespread currently, the experts felt progress was being made through ongoing definition and discussion of OER, and that the future of OER remains unforeseeable but could be positively influenced by institutional commitments to OER.