No its not about being ecologically friendly...
I live in one of the "greenest" American cities, Boston. Aside from Chicago, I do not know of any American city that rivals us on the "wearing of the green" on St. Patrick's Day. Boston is also known for its citizens' enthusiasm. (There have been riots and death as a result of celebrating our city's major league teams winning.)
So this year, during Boston's St. Patrick's Day festivities, Boston police have decided to use Twitter, the burgeoning microblogging tool, as a way to manage the crowds.
So for all of you who struggle to see the business value of Twitter, or fail to provide clear example to your potential corporate sponsors - look to the Boston Police Department. They get it. When you need sub-second, mission critical, timely sharing of dynamic information, insight and developments - Twitter Away.
And don't forget - next Tuesday, March 17th, to be "wearing the green".