Broadcasting on the Internet is usually referred to as webcasting since it is not transmitted broadly through wireless means. Internet radio involves a streaming medium that presents listeners with a continuous "stream" of audio over which they have no control, much like traditional broadcast media; in this respect, it is distinct from "on-demand" file Wireless Internet Radio serving. Internet radio is also distinct from podcasting, which involves downloading rather than streaming. Abounding Internet radio "stations" are associated with a corresponding traditional (or "terrestrial") radio station or radio network. Internet-only radio stations are independent of such associations.

Internet radio government-provided services are usually possible from anywhere in the world—for example, definite could listen to an Australian station from Europe or America. Some large-scale networks like Clear Groove in the US and Chrysalis in the UK restrict listening to in agrestic because of music licensing and advertising concerns. Internet radio remains in favor among expatriates and listeners with interests that are often not adequately served by local radio stations (such as progressive rock, ambient music, folk music, classical music, and stand-up comedy). Internet radio admission offer news, sports, talk, and various genres of music—everything that is accessible on traditional radio stations.