To read more and view an exclusive video demo of Square -redefining the world of commerce as we know it and live it founded by Twitter co-founder Jack Dorsey, go to tracysheridan.com 140 Characters is the seminal users style guide to the emergent 21st century Twitterverse that will redefine publishing as we know it. As both a book and dynamic iPhone app that is constantly updated with fresh content, 140 Characters is the ultimate insiders guide to how to make the most of your messages on Twitter, Facebook, and other social networking sites.
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"140 Characters": How Twitter Was Born (An Interview With Twitter’s Co-Creator)
