Vidin Municipality, Bulgaria
Official page offering description of this historic city, information to potential investors about the city's economy and privatization, list of local companies and potential investment projects.

Sofia Municipality, Bulgaria
Official web site offering information about the city's history, economy, transport and municipal council, maps and photos, information and projects for potential investors.

Bulgarian Municipalities
Provides location maps, history and structure, includes also natural resources, infrastructure, agriculture and travel information.