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QRZ - http://qrz.com
Includes news, searchable callsign database, license renewals and updates, DX spotting reports, APRS resources, clubs, solar report, and links. |
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QSL . NET - http://www.qsl.net/
Dedicated email and webspace service for the Amateur Radio Community; free space to licensed Amateur Radio Operators worldwide. |
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eHam.net - http://www.eham.net/
Amateur community portal featuring callsign lookup, product reviews, classifieds, news, articles, QSL managers, forums, propagation information, chat and surveys. |
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DXZone - http://www.dxzone.com/
Links, including antique, vintage and military radios, collectors, museums, and history. |
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Edge of Space Sciences, Inc. - http://www.eoss.org/
Promoting science and education through high-altitude balloons and amateur radio; balloon flight schedules, radio frequency information, general program data. |