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The Astronomical Applications Departmentof the U.S. Naval Observatory computes, from fundamental astronomicalreference data, the position, brightness, and other observablecharacteristics of celestial bodies, as well as the circumstancesof astronomica...

Stargazing Network provide free Web page hosting for the Amateur Astronomy Community. Stargazing Network is sponsored by Cetus Technology at www.cetus.net.

SunriseSunset.com provides a free service that creates a custom calendar with sunrise, sunset and twilight times for any location around the world.

Helping individuals, families and communities to find a way out of poverty.

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

Features collections of free to use online javascript calculators for astronomy, geometry, trigonometry, algebra, and many other areas. Also, available is free source code written in C and C++ for PC-DOS and Microsoft Windows, shareware that can be d...

ENERGY STAR is a government-backed program helping businesses and individuals protect the environment through superior energy efficiency.

The NOAA Earth System Research Laboratory was formed to observe and understand the Earth system and to develop products, through a commitment to research that will advance the National Oceanic and Atmopsheric Administration