Mojo

Mojo (formerly known as Maestro) is a new way to share music. With just two clicks, you are ready to browse, play, and download music from other Mojo users on the Internet and local network. Select a user to share with, and Mojo opens a browsing window. Songs you already have in your library are grayed out. Also, protected songs display in red. Select the button next to the songs you wish to download.

When your selection is complete, click one button and you're done. All the songs you have selected will be automatically downloaded and added to your iTunes library.

Requirements:

Windows XP/Vista, iTunes