iTunes 1.0 came with support for the Kerbango Internet radio tuner service, giving iTunes users a selection of some of the more popular online radio streams available. When Kerbango went out of business in 2001, Apple created its own Internet radio service for use with iTunes 2.0 and later. As of February 2008, the iTunes radio service features 1795 "radio stations," mostly in MP3 streaming format. Programming covers many genres of music and talk, including streams from both internet-only sources and traditional radio stations. iTunes also supports the .pls and .m3u stream file formats used by Winamp and other media players.
Since the release of iTunes 7, Apple no longer promotes the Internet radio feature, though it remains in the application. Some third-parties offer iTunes plugins that add additional radio stations.