Amateur Radio in General

• Ofcom: The government body responsible for radio licensing in the UK.
• The Radio Society of Great Britain: The national organisation representing radio amateurs in the UK.

Contests

• The RSGB Contest Committee: Information regarding all contests run by the Radio Society of Great Britain.
• MINOS: Contest logging software.

Digital Modes

• PSK Reporter: A service to help you identify where in the world your digital signals are being received.
• WSJT-X: Free software for using the WSJT family of digital modes.

Remote Operation

• Echolink: Software allowing licensed amateur radio stations to communicate with one another over the Internet.
• WebSDR: A web-based, software defined radio receiver.

Repeaters

• GB3IR: 2m FM repeater in Richmond, North Yorkshire, with Internet linking.

Satellites

• AMSAT-UK: UK division of AMSAT, representing those who operate through, design, build and fund satellites for amateur radio.
• AMSAT-NA: The North American division of AMSAT.
• Orbitron: Satellite tracking software.

Training

• RSGB Training Information: The official source for information about how to obtain an amateur radio licence.
• Hamtests: An enormous collection of sample examination questions for Foundation, Intermediate and Advanced examination candidates.