Facebook: A Global Community

Even though MySpace remains the leading US social network, BusinessWeek reports that Facebook is now the top global social network with over 132 million users: 63% of these users are from outside of North America.
Facebook has become an even greater way to build communities and reach out to consumers since the site is now translated in major languages like French, Spanish, Mandarin, and 69 more languages. There is a lot of growth in international countries for Facebook, and this is an exciting time for marketers looking to reach a global audience.
What's your experience on using social networks to reach a global audience?