Links

Propagation and Contesting:

- DX Notebook

3 hour K Index

- Space Weather
Solar information

- ARRL Contests Portal
WA7BNM Contest Calendar

DX Summit

Organizations: 

American Radio Relay League (ARRL)

- Radio Amateurs of Canada (RAC)

Radio Society of Great Britain (RSGB)
International Amateur Radio Union (IARU)

Websites:

Balun Designs - superbly built, high quality products

- DX Engineering - THE best place to shop for amateur radio equipment

Acom - beautifully built, high performance HF amplifiers - great factory customer service

- K4KIO HexBeam - premium quality product with matching customer support

- Begali - outstanding CW keys