#5yrs Ten Tweets That Shook the World - Slideshow from PCMag.com

Ten Tweets That Shook the World - Slideshow from PCMag.com: "It began as a pet project, a way of blowing off steam for a group of employees at Odeo, a start-up podcast publishing service. Five years to the day after sending its first transmission out into the void, Twitter is one of the most important communication tools that we currently possess."