Think Twitter was all fluff and no substance? Think again. Twitter presents the top 10 most powerful tweets of 2010, and there are a couple of knock-outs in there. Consider this:
After the massive 7.0 earthquake in Haiti, Doctors Without Borders flew in a team of physicians to assist the wounded, but they were unable to get clearance to land the plane. Reporter Ann Curry used Twitter to convince the U.S. Air Force to allow the flight to land.
Check out The 10 Most Powerful Tweets of 2010.