Here I'll list all the useful and cool tips and tricks I have learned involving iTunes 4 music sharing
Create Shortcuts To Your Favorite Music
If you want to easily connect to your favorite shared music simply highlight the address below the link you want and drag it too your desktop. This can also be done with the address bar. This creates a simple bookmark on your desktop that you can put anywhere such as the dock. You can rename the shortcut whatever you want. When it's double clicked, iTunes will open up the shared music.
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