Shortwave listening guide 
Grove enterprises 
Radio monitoring page 
Numbers stations on shortwave 
Universal Radio,inc Homage 
Shortwave DX Broadcasting hompage
Shortwave radio catalog 
Web Controlled shortwave radio
 The Dx listeners club 
 A Taste of Shortwave 
 World Wide DX Club 
 Dales Shortwave Radio Page 
 Shortwave antenna center 
 Broadcast band Dxing sites :  (540 Khz - 1630 Khz ) 
 The National Radio Club NRC 
 International Radio Club of America IRCA 
 Broadcast station location page 
 Medium wave home page 
Pirate Radio :

 Pirate Radio ( offshore ) 
  Pirate Radio ( another good site and links ) 
 The Ace Pirate enthusiasts 

Propagation information : 
Solar terrestrial activity report 
Solar terrestrial dispatch 
10 cm solar flux