The Sales Network: Facebook’s New Features Help Carmakers Shift More Cars

Initially, Facebook was available only to Harvard students, then to other Ivy League institutions, companies like Apple and Microsoft and as of September 26, 2006, everyone in the world who has a valid email address and is at least 13 years old.

As of last month, the social network has over one billion active users worldwide. California-based web analytics company Quantcast reports that in May 2011, it had 138.9 million monthly unique visitors in the U.S.; that’s close to 45 percent of the country’s population.

A billion users, half of them accessing the social media through their mobile devices, which means that they can be reached at all times: it’s a marketing team's wettest dream.

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