I have been using lastfm for almost a year and I love it so much. last.fm is a UK base internet radio for music lovers to listen music, or explore similar artists. All you need to do is to apply for an account and add all your favorite artists in to the library. The system will look at your music taste and introduce more good music to you. You might find that other users will recommend various music to you as well.
The web site is stylish and very easy to use! Besides, it also has HK and Taiwan popular artists in Chinese.
I use it to play music when I surf the internet. I know there are a lot of similar websites, but I highly recommend this one to you.