NARA
- usnara.org — programs, documents and membership
- Find a Club
- National Presenters Panel — request a speaker for your club
- Alfred Vail 20-20 Young Keyers Award
- whatishamradio.com — the plain-English beginner site
Licensing and exams
- HamStudy.org — free study and practice exams
- hamstudy.org/sessions — find an exam session
- FCC CORES / ULS — FRN registration, fee payment, renewals
- FCC Part 97 — the rules
themselves
Operating
- QRZ.com — call sign lookup and logbook
- PSK Reporter — live map of where your digital signal is heard
- Reverse Beacon Network — who is hearing your CW
- RepeaterBook — repeater directory
- POTA and SOTA — parks and summits
Software
- WSJT-X — FT8, WSPR, MSK144
- fldigi — PSK31, RTTY, Olivia and more
- Winlink Express / Pat — radio email
- N1MM+ / N3FJP — contest logging
- CHIRP — programming almost any handheld
- SatPC32, Gpredict, ISS Detector — satellite tracking
Space weather
- NOAA Space Weather Prediction Center — alerts and forecasts
- SolarHam — at-a-glance solar and geomagnetic conditions
- VOACAP Online — point-to-point HF predictions
Emergency
- FEMA independent study — IS-100, 200, 700, 800
- ARRL ARES
- SKYWARN
History
- Ham Radio History (W2PA) — a century of amateur radio from original
- United States Early Radio History — Thomas H. White's
- History of amateur radio — Wikipedia
QST and contemporary sources
primary-source archive, 1897–1927
overview
Communities
- r/amateurradio and its
- eHam.net — equipment reviews
- QRZ forums
community wiki — an active beginner-friendly forum; a useful map of topics, though not a substitute for the FCC rules