The "FaceCoin " will someday be a reality. According to many repoprts Mark Zuckerberg's social network would consider creating his own virtual tokens to facilitate paid transactions on his platform that now has some 2 billion user . For this matter Facebook has assembled a team dedicated to the technology of the blockchain. It is directed by David Marcus, former Messenger boss and former president of Paypal.
https://cheddar.com/videos/facebook-plans-to-create-its-own-cryptocurrencyActually facebook has started the concept of virtual currency since the end of year 08 called creditfacebook.
This allows users to get virtual stuff especially in games like Farmville and other online, it's just that they used to focus there.