Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Invented as a side project within podcasting company Odeo, Twitter has revolutionized communication via internet, helping to distribute knowledge and information, serving as a medium to organize protests in countries where freedom of speech and expression is limited, and introducing a new social phenomenon ambient awareness, a constant contact with other users. Learn more about this influential social network and its founders by reading this book.