9781422287231 Twitter®: How Jack Dorsey Changed the Way We Communicate

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TWITTER

Eventually, Twitter became so popular and successful that even the President of the United States is a Twitter user. Here President Barack Obama uses Twitter to hold a live question-and-answer session in the Roosevelt Room of the White House in December 2012. his own company. His company dispatched couriers, taxis, and emer- gency services using the Internet. But it wasn’t making Jack much money, so he tried out several different jobs over the next few years. He even spent some time studying massage therapy! None of the jobs he had felt like the right fit, though.