Ecology Research Group
- The areas of active research by the Open University Ecology and Evolution Research Group.
- http://www.open.ac.uk/science/biosci/research/ecology/index.htm

Ecological Society of America
- A non-profit organization of scientists founded in 1915, conducting research, teaching, and working to provide the ecological knowledge needed to solve environmental problems.
- http://www.esa.org/

Friends of Ecological Reserves
- Information about ecological reserves, the not-for-profit charitable organization and products and membership to purchase to support ecoreserves.
- http://www.ecoreserves.bc.ca

Conservation Ecology
- The Conservation Ecology Programme concerns itself with the quantification, conservation and management of biodiversity, particularly in relation to insects and associated ecological communities.
- http://www.cabi-bioscience.org/

International Mire Conservation Group
- Promoting the conservation of mires and related ecosystems, giving information on the sustainable use of mires, red lists of European wetland plants and a link to the IMCG newsletter.
- http://www.imcg.net/

Institute for Tropical Ecology and Conservation
- Courses available in conservation ecology.
- http://www.itec-edu.org/ecology.html

Eco-action
- Articles and background information for ecological direct action. UK and global news, links and contacts.
- http://www.eco-action.org/

The National Audubon Society
- The mission of the National Audubon Society is to conserve and restore natural ecosystems, focusing on birds and other wildlife for the benefit of humanity and the earth's biological diversity.
- http://www.audubon.org/

Ecovolunteer
- Gives the opportunity to protect nature and its inhabitants by helping local organizations with their conservation projects.
- http://www.ecovolunteer.org/