Tamra B. Orr 
Tuitear con un objetivo (Tweeting with a Purpose) [PDF ebook] 

It may be hard to believe that 140 characters are enough to get a message out to millions of people, but Twitter »s users do so every minute. Twitter is vital in many different spheres. This book introduces readers to how they, too, can tweet purposefully. Users can promote their personal brands, network for jobs and gigs, or leverage the platform for political change, education, or worthy causes. This book offers young people ways to amplify their voices and build community via this dynamic tool, while staying focused and safe.