Music Streaming and Sharing (Thing 17)

My experience: I opened an account with Last.fm. It was really easy to use. I had a lot of fun listening to all kinds of music. One track of The Temptations was not very clear; the quality of the sound was lost because it was recorded live but you could really see their moves! I really like the site as a whole; you could get biographical information, see videos, get the latest news, events, listen to tracks and so much more. It is nice to have so much information and the music of artists/groups at your fingertips on one site.
Suggestions of other artists were helpful. The music is similar to the music by the particular group/artist you are listening to and jogs you memory of other groups you might have forgotten about.
As far has helping patrons, you can get a lot of information quickly for them. You can tell them if an artist or group is on tour, they most listened to song, biographical information, a list of the group's/artist's albums, pictures just about anything you want or need to know about an artist or group.
I think eventually people with stop purchasing CDs. My daugther stopped wanting CDs several years ago. You can build you own music library, pick and choose the tracks you want right in the comfort of you own home.