Radio.co - For radio people, by radio people.
RadioCut - All the radio to rewind, listen and share
RadioKing - RadioKing is a solution for creating & broadcasting your own online radio station. This solution also offers turnkey services to support radio stations in their digital development (Website, Mobile Application, Connected Speaker, TV and Auto).
Recast - Listen to radio stations' playlists with Rdio or Spotify
Live365 - 5,000+ online radio stations run by real people, not generated by computers.
Radiojar - Social web radio made easy