OECD : (Organisation for Economic Co-Operation and Development) An International organisation helping governments tackle the economic, social and governance challenges of a globalised economy.

The World Bank : working for a world free of poverty. 

CIA World Fact Book : a resource detailing information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 267 world countries.

Wikipedia : the free on-line encyclopedia that anyone can edit.