A service of the International Institute for Sustainable Development (IISD), Linkages is a clearinghouse for information on "past and upcoming international meetings related to environment and development policy." Breaking news headlines and text describe current important events, such as COP-4 (see In The News). Additional real-time information on "the activities of governments, NGOs, and the United Nations," is provided in the Earth Negotiations Bulletin, "a reporting service for environment and development negotiations." Summary reports, historical perspectives of the conferences and conventions, and links to associated resources and archives are also available on-site.