This look at Facebook Fans values indicates how segments need to match to your business. The airline in this video found some of its fans were outside of the customer demographic it serves.
The video dovetails into a growing trend of having more fans than value - such as fake followers purchased for Twitter and Facebook accounts. That trend also plays an influential factor in big data as social media comments and mentions are correlated to predictive models. How much data cleansing becomes required if your sources do not relate to characteristics of interest? This video will give some thought to it, at least from the perspective of a Facebook Fanpage.
Enjoy, and be sure to comment at All Analytics in the YouTube page as well as here on this blog.