We are all looking for good measuresß and metrics to judge our social media success upon, but few allow us to achieve this outcome as well as the Social Media Vitality Index (smVM). smVI simply measures the amount of revenue from new social media programs over the last 12 months compared to all other revenue generated by marketing services, expressed in percentage (%). For example, if your social media program contributed $5M of the total $100M in revenue, for the last 12 months, then you have a smVI of 5%. Socially healthy companies, it is desirable to have smVI between 10%-20%. Translated, the revenue of the company will turnover every 5-10 years based solely on social interactions alone. Not bad. See PAOSM 63/101.
Practical Aspects of Social Media: Art, Science, and Humanity 