Facebook Fans Spend More Money [STUDY]
http://mashable.com/2010/06/12/facebook-fan-value/

A social media marketing company called Syncapse surveyed 4,000 people who've Liked brands on Facebook and figured out how valuable those fans are.

Facebook Fans Spend More Money [STUDY]

The study (“The Value of a Facebook Fan: An Empirical Review”) estimates that someone who has Liked a brand will spend an average of $71.84 more each year on that brand’s products or services than will someone who has not Liked it on Facebook, for a total average annualized value of $136.38.