One great feature of iPads and iPhones is that you’ll never need to authorize iTunes like you would on a computer. You can simply log in and start making purchases ...

If you plan to give away, sell or trade in your Mac, you should de-authorize your iTunes account on the computer first, as this removes its access to content that you bought from the iTunes Store, ...

Moving your iTunes library from one computer to another has always been kind of a drag, but weblog HeyHowTo details how iTunes 9's new Home Sharing feature has made it a relatively painless process.

Steps to restore access and protect data when possible ...