Jolly good fellow. From Mashable:

On March 21, 2006, Jack Dorsey tweeted the first ever tweet on Twitter.

The sheer fact that you can understand that sentence shows you how far Twitter has gone since then. It has become the de facto short message system of the internet and the favorite social networking service of celebrities all around the world.

And, with over 500 million users, it is the largest one-to-many open communication platform on the web.

Admittedly, we were among the scoffers.

But then again, we thought crystal meth would never catch on, either.

About the feature image: Twitter’s a girl, right? Talks too much to be a boy.

Meet anyone interesting or important to your life through Twitter? Please share your story.