· www.arrl.org - Amateur Radio Relay League: The National Association for Amateur Radio
· www.qrz.com - Online community of amateur radio operators. Offers call sign lookups, forums, equipment trading and news.
· www.eham.net - Online source for product reviews and articles by amateur radio operators.
· www.aprs.org - Learn about Automatic Packet Reporting System (APRS) to facilitate position tracking and messaging.
· www.aprs.fi - View APRS stations and their locations around the world.
· www.arrl.org/logbook-of-the-world - Logbook of the World (LoTW) is a service provided by the ARRL for the electronic confirmation of or contacts. May be used to confirm contacts for ARRL sponsored awards.
· www.eqsl.cc - Service that can be used to electronically trade QSL cards.
· www.sdlink.org - The South Dakota Link system is a series of linked UHF & VHF repeaters across the state for use by radio amateurs.
· QRP and Homebrew - A site for information about QRP and HomeBrew.
Audio / Video:
· www.myamateurradio.com - Jerry Taylor, KB0BIK, hosts the monthly Practical Amateur Radio Podcast (PARP) covering a variety of amateur radio topics.
· www.twit.tv/hn - Ham Nation (on the TWiT Network) is a weekly video podcast hosted by Bob Heil and covers a variety of topics.
· www.amateurlogic.tv - Amateur radio technical video podcast.
· www.arnewsline.org - A weekly audio podcast covering current amateur radio news topics.