Twitter

Twitter is a free microblogging service founded in 2006 by Jack Dorsey and Biz Stone. At its heart are 140-character bursts of information called tweets. Users can include links to other content in their tweets, and broadcasts can be public or private. Celebrities, journalists, politicians and other public figures have established significant followings on Twitter. Media outlets in particular use Twitter as a way to broadcast breaking news.

Since its founding, Twitter has grown into a social media juggernaut, and popularity on the service is often used as a benchmark of influence. Companies have also used the service as a way to engage with their customers - offering promotions and other specials.

For basics on how to use the social network, check out The Beginner’s Guide to Twitter.

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