What are the positives and negatives of Internet radio?

Positives: Gives listeners easy access to a wide range of music at a low (or no) cost; few commercials disrupt airplay; unknown and independent bands get exposure.

Negatives: Local radio stations will only be heard in the car or wherever there isn’t a computer; mainstream bands get less airplay, which is bad for the major labels (wait, isn’t that a positive? ;^)