IF I have two of my personal computers at home how do I share my music between the two?

I have ITunes but every time I hook up the Ipod to each computer it will only put what is on that computer. Is there a way to link the two, what about sharing with a friend in another state can we share through our ITunes? please help me you may have to spell it out I am ignorant when it come to computers

IF I have two of my personal computers at home how do I share my music between the two?antivirus downloads

maybe try a USB cable?

IF I have two of my personal computers at home how do I share my music between the two?cafe racer

You should post this in the computers category. You'll need to network them together.
Ethernet cable.