With online streaming music, you can listen to music directly from an audio signal on the Internet. You hear it as it arrives on your computer, as opposed to other services like iTunes or Amazon where you purchase and download an audio file. In order to listen to streaming music, you usually will need some kind of audio player on your computer, such as the Windows Media Player. Some services provide their own audio player.
There are a number of websites now that allow you to stream music for free in a fun, interactive manner. Lifehacker lists the five best music-streaming services as:0