It's hard to believe that the hot social networking site Twitter — which allows users to post mini "micro-blog" updates — has been around for over three years. That's right, Twitter was founded in March 2006 by Biz Stone, Jack Dorsey, and Evan Williams, and was unknown to many until the 2008 presidential election — which catapulted it to tech stardom. For the past seven months, Twitter has gone from nay to yay, and here are some of the reasons why!

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