Facebook announced Facebook Gifts, which lets users make purchases for friends directly through the social network.

CNN: Twitter and Amex to let you pay with a hashtag

For the court to rule in Napster's favor it would have to refine the concept of "fair use, " which lets the owner of a recording make a copy for personal use or for use by friends or family.

CNN: Napster takes the defensive

But it also lets me make calls, log on to Twitter and Facebook, share photos, play games with friends and send messages through a variety of services.

FORBES: From Walkman to Facebook: How Tuning Out Led to Tuning In