The power of social media is not unknown. If only you ever wanted to measure it, here is an app to count the 'number of people joining facebook', 'emails sent globally', 'minutes of video calls on skype', etc... The count interestingly demonstrates the exponential growth of each category. Ever wondered how much time us spend on Facebook/Gmail/LinkedIn/Youtube??? Not to worry, u're not the only one - you are just following the trend.
And for social media marketers, its just a visual treat :)