Online radio (also web radio, net radio, streaming radio, e-radio, IP radio, internet radio) is a digital audio service transmitted via the Internet. Broadcasting on the Internet is usually referred to as webcasting since it is not transmitted broadly through wireless means. It can either be used as a stand-alone device running through the internet, or as software running through a single compute Online radio services offer news, sports, talk, and various genres of music—every format that is available on traditional broadcast radio stations. Several online radio services are associated with a corresponding traditional (terrestrial) radio station or radio network, although low start-up and ongoing costs have allowed a substantial proliferation of independent Internet-only radio stations.