Science can play its role in shaping your online strategy.  A viral hit is what all marketers aim for, yet so few campaigns take into account the key forces needed to create your best chance for viral propensity.  If you can apply Mailman’s 5 Factors to Viral propensity to your campaign you will give yourself the best chance at viral success. Let’s begin… with this image in mind. 5 Forces for Viral Propensity 1. Media – You must ask yourself ‘what about our online initiative