The World Factbook is a one-stop reference site.
Although many of the facts presented in The Factbook may be found in various other publications, they are conveniently gathered together in one place only at The World Factbook Web site.
The World Factbook is a unique reference in that it is updated continuously - on average, every week.
Information in The Factbook is collected from - and coordinated with - a wide variety of US Government agencies, as well as from hundreds of published sources.
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References :: Guide to Country Profiles
These are the Categories, Fields, and subfields of information generally recorded for each country. Links are to the Definitions and Notes about each entry.
Introduction ::
Background:
Geography ::