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BlueSeas.com
Free resources for the navigator, cruiser, passagemaker, boat and yacht delivery crew, or the offshore fisherman including navigation, marine radio communications, boating safety, and weather.
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Captains Nautical Supplies
Marine supplies and nautical equipment, shop for nautical charts and books, telescopes and binoculars, marine navigation tools and software.
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iNavX
Brings official NOAA RNC raster United States waters marine charts to your iPhone or iPod Touch.
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SeaTech Systems
A digital navstation that combines the personal computer with the Global Positioning System, Electronic Charting System software, digital charts, single side-band radio, and satellite phone into an easy-to-use integrated system.