http://customs.bg/en/page/2  - The national Customs Agency

http://mitnici.eu/en/ - e-newspaper "Customs"

http://www.minfin.bg/en/ - Ministry of Finance

http://www.mi.government.bg/eng/index.html - Ministry of Economy, Energy and Tourism

http://www.moew.government.bg/index_e.html - Ministry of Environment and water of Bulgaria

http://www.damtn.government.bg/index.php?lang=en - State Agency for Metrological and Technical Survaillance

http://www.dker.bg/index_en.htm - State Enegy and Water Regulatory Commission

http://www.europia.com/Content/Default.asp - Europia

http://www.europia.com/Content/Default.asp?PageID=390 - Европейска Комисия

http://eur-lex.europa.eu/en/index.htm - European Union Law

http://energy.eu/#prices - Fuel Prices

http://www.ceibg.bg/index.php - Confederation of the Employers and Industrialists in Bulgaria

http://parliament.bg/?page=home&lng=en&r=n - National Assembly of the Republic of Bulgaria

http://www.mfa.government.bg/en/95/ - Permanent Representation of the Republic of Bulgaria

http://www.bia-bg.com/ - Bulgarian Industrial Association

http://www.nsi.bg/indexen.php - National Statistical Institute

http://www.bulenergynews.org/?lang=en - Bulgarian Energy Forum

http://www.energy.gov/ - Department of Energy

http://info.plusminus.com/default.aspx - Plus Minus, Legal Portal