I decided to dig in and research the current landscape thoroughly, both to better understand the lay of the land and to save you the research hassle.
It was only a matter of time before Facebook and e-commerce would converge. Until a little over a year ago, only storefronts existed on Facebook, where merchants could display and promote their products and, with ‘Add to cart’ buttons, imply e-commerce functionality.
But when users clicked on ‘Add to cart, they were whisked away from Facebook to the merchant’s website where the actual shopping-cart experience occurred.
Almost There: Storefronts, but Not Stores
Two prominent examples of storefront-only functionality on Facebook are Threadless and Best Buy, both of which include great integration with Facebook’s social features (sharing, commenting, liking), but don’t support e-commerce transactions within Facebook.