MySpace's biggest challenges in expanding abroad involve cultural differences. People outside the United States have different and very established habits when it comes to socializing online. And many do so by using mobile phones rather than computers.

"In the U.S., teen and twentysomething culture is more about IM," or instant messaging, according to Danah Boyd, a fellow at the Annenberg Center at the University of Southern California who studies popular culture and technology. In other countries, "the primary way of talking to your friends is SMS," the text messages on mobile phones.