Despite the fact that radio predates television by many years, it is still an important and widely used form of communication. DXing.com is sponsored by Universal Radio Research and is a very informative source of radio technology and news. For users interested in learning how radio works, many basics are described, such as frequency, wavelength, and modulation. An introduction to shortwave radio is a good guide to learn how to listen to worldwide broadcasts. A monthly radio program that provides "tips, broadcast insights and the latest developments (and gossip) from the world of domestic and international broadcasting" is featured on the site in Real Audio, along with archives of previous programs. There are many more areas of the site that have not been mentioned that make DXing.com a very comprehensive site.