The scientific literature of the last 15 years includes numerous pieces of research and experiences about the adoption of innovations in education. Technological innovations have been constant, in many cases accompanied by pedagogical innovations, but the pace of adoption is not as intense as desired. This paper introduces the concepts of technological innovation, adoption, Open Educational Resources (OER) and OER ecosystem. From these concepts, a proposal is devised to promote adoption of innovations in education based on the OER Ecosystem, guided by the Technological Acceptance Model (TAM) for innovation. Results of an instrument (questionnaire) applied to Teachers from universities in Spain, Bolivia, Peru, and Chile are provided, which evidence the need for training in new technologies, pedagogies and in the OER Ecosystem. The survey indicates that universities neither support institutional repositories and programmes nor develop policies to promote faculty training and development.