Links > Diversen The Association for Progressive Communications (A.P.C.) is a worldwide partnership of member networks dedicated to providing low-cost and advanced computer communications services. APC seeks to improve networking and information-sharing among organizations and individuals devoted to principles of environmental sustainability, social and economic justice and universal human rights. APC systems connect more than 16,000 scientists, educators, natural resource managers, community activists, policy-makers, and opinion-shapers in more than 94 countries through a distributed network of host computers.