UNESCO's Open Educational Resources (OER) siteUNESCO believes that universal access to information through high quality education contributes to peace, sustainable social and economic development, and intercultural dialogue.
Open Educational Resources (OER) are teaching, learning and research materials in any medium – digital or otherwise – that reside in the public domain or have been released under an open license that permits no-cost access, use, adaptation and redistribution by others with no or limited restrictions.