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The Free Software Catalog

Online References

Just about anything you want to know has been - or is being - cataloged into a database or encyclopedia - i.e. wiki - of some kind.

Here is a great list of free, high-quality reference material available to anyone with a web connection.

Windows  Mac  Linux  Unix
CIA - The World Factbook
by Central Intelligence Agency
Version: - 

An online reference covering the nations of the world.

Windows  Mac  Linux
Google Earth
by Google
Version: 6.1.0.5001 
Released: Oct 26, 2011

Google Earth lets you fly anywhere on Earth to view satellite imagery, maps, terrain, 3D buildings and even explore galaxies in the Sky. You can explore rich geographical content, save your toured places and share with others.

Windows  Mac  Linux  Unix
HowStuffWorks
by HowStuffWorks, Inc.
Version: - 

A collection of articles on how things work.

Windows  Mac  Linux  Unix
IMDb
by Internet Movie Database Inc.
Version: - 

A database of information on movies, actors and more.

Windows  Mac  Linux  Unix
Merriam-Webster Online
by Merriam Webster
Version: - 

The famous dictionary online.

Windows  Mac  Linux  Unix
NutritionData.com
by CondeNet
Version: - 

A database and reference of nutrition information on a very comprehensive list of foods.

Windows
ProcessLibrary.com
by Uniblue Systems Ltd.
Version: - 

An online reference of common Windows processes.

Windows  Mac  Linux  Unix
RhymeZone
by Datamuse
Version: - 

A rhyme, homonym, antonym and synonym reference. Excellent tool for writers.

Windows  Mac  Linux  Unix
W3 Schools
by Refsnes Data
Version: - 

A quick reference of most of the technologies used in web development.

Windows  Mac  Linux  Unix
Open Source
Wikipedia
Version: - 

A community maintained online encyclopedia.