I love listening music specially when the next song coming up is a surprise. When you have your collection, you might get bored with those songs listening them over and over again. Probably thats why radios are pretty famous. I used to be a big fan of Vividh Bharti, one of the most famous radio show in India.
Internet has evolved and so does the music industry. Now you can get those songs as an MP3 and can create your own CDs or burn them into your iPods. But still listening to radio is an experience. I found this website which lets you listen to a radio in Web 2.0 style.