Internet radio's great, but you need an internet connected device to listen to it. If you have an old radio sitting around and you want to listen to some tunes, Make shows you how to rebroadcast those stations on the FM band using a Raspberry Pi.
You'll need a Raspberry Pi alongside an Adafruit FM transmitter (you can also just hack in your own antenna, no purchase required with this guide). When you're finished, you'll have be able to transmit up to 9m. It's certainly easier for most of us to just plug in our devices to a stereo, but that's not always possible with older equipment.