I have found a great 2 minute pitch made by the people at Nurun, social commerce provides a value proposition for business, specifically, the problem it solves “social media ROI” and how to do it by turning fans into customers and then brand ambassadors.

Marketing is all about “solving people’s problems at a profit”; then social commerce needs to fit in the overall strategy and being coherent with the business goals.

Even if this is not convincing have a look at this image of different retailers who have developed and implemented a f-commerce strategy made by the guys at Social Commerce Today.

Or even here you can check out a larger list of major brands retailers selling on facebook prepared by Social Commerce Today.