Trying to weed through all the webinars and decide which ones to attend? Put this Twitter summit on the top of your must-attend list. Here's why. In a time when it seems like there is Yet Another Massive Marketing Event Registration (YAMMER) every other day, why would one stand out from the others? What might make you decide to register and spend a day at this event rather than that one? Unless it's an organization you're familiar with, or there's a speaker you know and can't wait to learn from, you're left to quickly determine whether one summit is