Radio
DXRadioWorld.com - http://www.dxradioworld.com/
A forum for CB and 11-meter DX operators and amateur radio in general.
Grumpy's Radio Forum - http://grumpy.proboards.com/
Radio enthusiast site. has a community forum and links to other sites. Aimed at Browning and Tram enthusiasts.
Key CB Radio Shop - http://www.keycb.com/
National factory repair store for Tryker and Cobra CB Radios. Based in Indiana.