Mary-Lane Kamberg 
Evan Williams, Biz Stone, Jack Dorsey, and Twitter [PDF ebook] 

50 million active Twitter users log in to Twitter every single day. 230 million tweets are sent every day. Twitter is one of the most widely-used and well-known social networks that exists. In just 140 characters, people share their political views, jokes, favorite things, and more. With a lot of hard work from Evan Williams, Biz Stone, Jack Dorsey, and many others this Internet phenomenon was able to manifest. Readers explore the lives of the main Twitter creators and how their company has grown, and changed, since its introduction.