The Environmental Site is dedicated toward public understanding of environmental issues. Internet-Based Environmental Resources, Environmental Stewardship Initiatives, Environmental Bestsellers.

The Fondazione Eni Enrico Mattei (FEEM) is a no-profit, no-partisan research institution established to carry out research in the field of sustainable development. One of its principal aims is to promote interaction between academic, industrial and public policy spheres in order to comprehensively address concerns about economic development and environmental degradation. The Fondazione's activities are guided by four fundamental criteria: to analyse relevant and innovative research areas; to focus on "real" world issues; to integrate multi-disciplinary approaches; to create and foster international research networks.

Harmony Foundation is an environmental educational non-profit that creates innovative environmental and community training programs and educational materials for educators, youth.

The International Society for Ecological Economists (ISEE) facilitates understanding between economists and ecologists and the integration of their thinking into a trans-discipline aimed at developing a sustainable world. The Society promotes understanding between ecologists and economists and integration of their disciplines through a journal, Ecological Economics, other publications, a biennial international conference, occasional smaller workshops, and support of the activities of regional societies of ecological economics.

MEES promotes and improves of environmental education in Massachusetts by providing networking, communication, and material resources. Below is a brief description of the tools massmees.org provides to the environmental education community. Tools are grouped by the three access groups: all visitors, registered users, and MEES members.

Pfeiffer Nature Center is a non-profit, tax exempt organization with the purpose of building a foundation of knowledge, understanding, and appreciation for the intrinsic value and aesthetic qualities of our natural world.

RFF is a nonprofit and nonpartisan organization that conducts independent research - rooted primarily in economics and other social sciences - on environmental, energy, and natural resource issues. Although RFF is headquartered in Washington, D.C., its research scope comprises programs in nations around the world.

Southwest Environmental Research & Education is a non-profit [501(c)(3)] orgainzation seeking to help solve environmental problems in the US Southwest via environmental eduction and research.

The Society of Environmental Engineers (SEE), is a professional Society which exists to promote awareness of the discipline of environmental engineering, and to provide members of the Society with information, training and representation within this field. Environmental engineering is concerned with the measurement, modelling, control and simulation of all types of environment. It is an interdisciplinary subject, bringing together aspects of mechanical, electrical, electronic, aeronautical, civil, energy and chemical engineering. It also draws from the fields of physics, acoustics, metallurgy, microbiology, pharmacy and many other technical and scientific disciplines.

The Used Oil Management Association advocates the on-site recycling of used oil for energy recovery in a used oil-fired space heater and boiler. Used oil is the largest single source of water pollution in the U.S. One gallon of used oil can ruin 1 million gallons of water and create an eight-acre slick on surface water.