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Earth Sciences - Advertise & Links - Web directory
The GPS Primer
A tutorial explaining Geographic Positioning System (GPS) receivers in simple terms.
http://www.gpsprimer.net/
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added: 02/06/06
GPS Watches
A vast resource with information about GPS watches.
http://www.gps-watches.info
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added: 02/06/06
Earthfragments
Rocks, fossils, minerals, and crystals for sale. We specialize in natural Carboniferous/Pennsylvanian PA fern plant fossil display slabs excavated from Pennsylvania coal mines. Forum, links, more.
http://www.earthfragments.com
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added: 02/09/06
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PR: 3
Globalwarming Awareness2007
Directory for care the world
http://www.globalwarmingawareness2007directory.com
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added: 01/19/07
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German Webdirectory - total records in this categorie: 4
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