It was available to the public in July 2006. The idea for Twitter came from wanting to use a short messaging system for a small group.

In March 2006, Jack Dorsey, Noah Glass, Biz Stone and Evan Williams created Twitter. There is also an option to protect tweets so only followers can read tweets. They are permanent, searchable and public. But unlike IMs that disappear when the user closes the application, tweets are also posted on the Twitter website. Because tweets can be delivered to followers in real time, they might seem like instant messages (IM) to the novice user. Twitter is used to share information quickly. Twitter was the first source to break the news of the water landing of US Airways Flight 549 in New York City's Hudson River. They also use it to stay current on news and events. People use Twitter to get the latest updates and promotions from brands communicate with friends and follow business leaders, politicians and celebrities. Nonregistered users can only read tweets. It is a microblogging service - a combination of blogging and instant messaging - for registered users to post, share, like and reply to tweets with short messages.

To access Twitter, users need an internet connection or smart phone to use the app or website,. These tweets can contain text, videos, photos or links. Twitter is a free social networking site where users broadcast short posts known as tweets.

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