The World Factbook

The World Factbook provides information on the history, people, government, economy, geography, communications, transportation, military, maps and transnational issues for 266 countries.
https://www.cia.gov/library/publications/the-world-factbook/

Currency Converter

Convert a currency instantly using Go Currency.com.
http://www.gocurrency.com/add-converter.htm

Language Translator

Understand any language using the Yahoo Babel Fish language converter.
http://babelfish.yahoo.com/

World Weather, Time and Calendar

Get instant information about time zones and weather internationally.
http://www.timeanddate.com/weather/

Country Dialing Codes

This link is your complete guide to call anywhere in the world. It will help you find the dealing codes around the globe.
http://countrycode.org/