• Ecology and Biodiversity  - A massive site listing links to the following areas: global sustainability, endangered species, captive breeding, exotic introductions, pollution. Human population, habitats, biodiversity and conservation, and international treaties. 
• Ecology and Society - A journal of integrative science for resilience and sustainability.
• Ecology.com - An Ecological Source of Information - A source of global environmental issues, scientific research project coverage, gardening tips for backyard ecologists, coverage of current topics.
• Ecology Tutorial - Short introduction to the science of ecology, including terminology.
• History of Ecology - Bibliography and notes on prominent ecologists.
• Suite 101: Ecology - Articles on ecological themes.
• The Last Noah's Arks - Animal Rights, Bioacustic, Biodiversity, Biogeography, Biotechnology, Birds/ Birding, Ornithology.
• WWF - WWF official website (em inglês)