- www.bahai.it e www.bahai.org
- www.energoclub.it
- www.aspoitalia.net/ , ASPO - Association for the Study of Peak Oil and Gas (www.peakoil.net)
- www.jnaudin.free.fr/
- www.unep.org - United Nations Environment Programme
- www.worldwatch.org - Worldwatch Institute
- www.wri.org - World Resources Institute (WRI)
- http://www.bcca.org/ief/home.htm