Last.FM
Today my classmate, Karen, told me a cool site: www.last.fm
If you want to take a look, click on ‘My Music Chart’ on the left pane under ‘Link to My…’ category. You will be brought to my user page of Last.FM. As you can see there, my recently played songs are on the chart. And each of them is automatically grouped by the artist and the last played date, enabling them to be organised in a neat statistic chart showing my top artists and top tracks.
What is more, you can add your friend in your friend list, send a recommendation, and sharing information about music. As you use this service, it will gather your preferred music and suggest you the relevant artists for you when you play its Radio service. If you want to find out more, visit my user page, see if you are interested in. If you are, try its tour to ensure you that it’s fun before deciding to sign-up. 
Thanks to Karen for telling me this cool site!
