One Dollar Equals- Part 1

10 Facebook Credits

With 600 million accounts worldwide, Facebook's user base is now twice the size of the United States. So maybe it makes sense that Facebook Nation has its own currency. Exchangeable through many tangible currencies, like British pounds and South African dollars, the Facebook credit can be redeemed within the social network to play games and buy toys -- not unlike a Chuck E. Cheese token, but for Farmville and other online games. According to Inside Network, the Facebook sold nearly $1 billion worth of credits in 2010.