Reinventing the wheel, in this case, could be seen as a way to direct traffic to a profitable business. Being the central point for people investigating or sha

Reinventing the wheel, in this case, could be seen as a way to direct traffic to a profitable business. Being the central point for people investigating or sharing information about music on web seems like it might possibly have some value too. As you said, maybe it is a business Apple is contractually precluded from entering. If it isn't, it would seem Apple could fairly easily leverage their existing resources to create it. As was implied by other posters, perhaps they are not because they do not wish to dilute the iTunes channel.