TechSoup.org offers nonprofits a one-stop resource for technology needs by providing free information, resources, and support. TechSoup also works with technology partners to provide nonprofits access to donated and discounted technology products.

International Friends of Nature are committed to sustainable development based on democracy and solidarity in both economy and society. Activities focus on Europe's responsibility for sustainable development, environmentally and socially sound tourism, sustainable regional development and active environmental education.

The Natural Step is an international advisory and research organization working to create solutions, models and tools designed to accelerate global sustainability.

The WRI is an environmental research and policy organisation. They aim to protect the EarthÂ’s living systems, increase access to environmental information, reverse global warming and create sustainable enterprise and opportunity.

ISES aims to increase the use and acceptance of renewable energy, create and distribute publications supporting renewable energy technologies and to advise governments and organizations in policy, implementation and sustainability issues worldwide.

The WCRE was founded in 2001 during the International Impulse Conference for the Creation of an international Renewable Energy Agency to be a global voice for renewable energy.

GESI is an initiative of Information Communications Technology Service providers and suppliers with the support of the United NationÂ’s Environment Program and the International Telecommunications Union.

The Rainforest Site focuses the power of the Internet on a specific ecological need -- the preservation of the worlds rainforests.

A nonprofit organization of activists and technically oriented people working to enhance grassroots organizing, research, and movement building. This site has a links page with over 280 links relevant to computers and social change organizing.

The Earth Charter is a declaration of fundamental principles for building a sustainable and peaceful global society in the 21st century. It seeks to inspire a sense of global interdependence and shared responsibility for the well-being of the world.