Adam DeVon Miller raised money for kids with a bike, T-shirt and Twitter.
Carjacking victim rescued with a Tweet.
Maritza Lugo draws on her imagination to illustrate your Tweets.
Daniel Jones, Peter Gregson and Britten Sinfonia created music from Tweets.
Lauren Lane and Daniel Welch recovered their hopes for a perfect wedding.
Arijit Guha fought for insurance coverage, and won.
Francis Kariuki uses Twitter to find lost sheep and scare off thieves.
Steve Berry fought crime with a Tweet.
Jerry Rizzo tweeted his way to a dream job in the NBA.
Mark Hayward used Twitter to help save a dog’s life.
Reporter Brian Stelter lost 75 pounds on Twitter.
Wael Ghonim became a symbol for the #Jan25 pro-democracy movement in Egypt.
Sohaib Athar inadvertently live-tweeted the raid on the Osama bin Laden compound.
Daniel Morales reunited with his daughter after 11 years.