Brevity, attitude, feedback from readers, and the freedom to be funny — even sarcastic — are some of the benefits that the Poynter Institute's Mallary Jean Tenore has collected from four years of tweeting. "After writing my first draft of this story, I went through it and removed all the words I didn’t need," she writes on the Poynter website. "Every sentence in this story — except for one excerpt — is now 140 characters or less."
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