Natuur algemeen

·                             The Journal of Balkan Ecology

·                             ECOLOGY CENTER at the University of Chemical Technology and Metallurgy (UCTM), Sofia, Bulgaria

·                              Forest Research Institute

·                              Virtual Library BoViS

·                              Online Video Catalog

·                            www.greenbalkans.org: Federation of nature-conservation NGO’s

·                            www.rec.org: the Regional Environmental Center for Central and Eastern Europese

·                             www.rec-bg.org: links with government, municipalities and environmental organisations

·                             www.enviro-link.org : Institute for Ecological Modernisation

Ministeries

·                             Ministry of Environment and Water

·                             www.mzgar.government.bg: Ministry of Agriculture and Forestry (MAF)

·                            www.mee.government.bg: Ministry of Economy and Energy

·                            www.seea.government.bg: Energy Efficiency Agency

·                             www.natura2000bg.org/natura/eng/about.php: Natura 2000 project of Ministry of Environment and Water

·                             http://hm.moew.government.bg/indexE.cfm: Bulgarian biodiversity portal

Energy Efficiency en Klimaatverandering

·          www.bgeef.bg: Energy Efficiency Fund

·         www.cogeneng-bg.com: the National Assocation for the Promotion of Cogeneration

·          BlueLink: Environmental Gateway of Bulgaria

·         www.eneffect.bg: Center for Energy Efficiency EnEffect