Our weekly Viral Video Chart, powered by Visible Measures, frequently serves as a good reminder that the most-seen brand videos online are not always what the layperson calls "viral." The No. 1 spot on this week's ranking, for example, goes to a quotidien 15-second campaign for Wells Fargo that undoubtedly piled on the views through paid advertising. The No. 2 spot goes to a Nike extravaganza that's full of celebrities and humor; it's more conceivable that some people sought that one out in an organic way and even shared it so friends could see it. Our ranking includes both paid and organic views.