Radio is a huge contender in the world of media. As many people listen to AM/FM radio every month as watch T.v., and online radio services, from streaming local stations, to online-only personalized radio, top the list of how people spend their time on the internet • more than watching cat videos or lurking on Facebook. .radio is for any musician, band, radio station, advertising agency, or business looking to promote and do business through radio outlets. Getting a .radio domain means you'll be hooked into this still burgeoning media business.