This document discusses the emerging trend of "f-commerce", which is selling products and services directly on Facebook. It outlines the various ways that companies can engage in f-commerce, from opening Facebook stores to drive direct sales, to using Facebook ads, deals, and check-ins to promote external websites or physical retail locations. The goal of the report is to analyze the opportunities and risks of f-commerce specifically for consumer brands, and provide guidance on how brands can best leverage f-commerce on Facebook to build their brands and activate advocacy among fans.