"Real" goods purchased from inside Facebook might be considered "online" shopping or "online commerce."
"Virtual goods" bought for a Facebook hosted game might be considered as a separate category.
More recently, Facebook has been used as a way of signaling customers to go buy something in a physical store. So the issue is how to describe the full range of commerce activities that Facebook and other sites are starting to support. "Social commerce" is a term some now use, since the activity can span online and physical locations, include digital as well as physical goods, be delivered either to the device, a physical location.
We’ve now progressed from using social media as a place to converse and share content, and as we build up trustworthiness in social channels we are becoming more comfortable with the idea of transferring money and allowing social technologies to transform the shopping experience.
So it might come as no surprise that "social commerce" is in a hype phase at the moment, as people look at ways to take social networks and shift them from conversations to shopping and banking. How money is changing social media
Mike Fauscette, IDC analyst, for example, predicts that in three to five years, 10 percent to 15 percent of total consumer spending in developed countries will occur through Facebook.