How much is Starbucks’ 6.5 million fan base is worth? $23.4 million in media annually, or broken down to a per capita number, $3.60. So says Vitrue, which which has developed a way to value Facebook fans. According to its research, a Facebook Page with one million fans is worth a minimum of $3.6 million in earned media annually, it said in its blog.
Vitrue came to this conclusion by determining that the ratio of impressions to wall posts was approximately 1:1 (0.96:1 to be exact). Hence, a one million....