About.com, Radio
Features information for AM, FM, HD, HD-2, SIRIUS XM Satellite Radio, Internet Radio and Streaming, WiMax, and Podcasting. Includes radio news and headlines, links to jingle collections, public radio, amateur, short wave, and information on broadcast schools and career information for the United States, Australia, Canada, and England.
http://radio.about.com/

North Country Radio
Find electronic assemblies, kits and parts for amateur radio, shortwave, television, radio, unique lighting, and science projects.
http://www.northcountryradio.com/