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The U.S. State Department doesn't usually take an interest in the maintenance schedules of dotcom start-ups. But over the weekend, officials there reached out to Twitter and asked them to delay a network upgrade that was scheduled for Monday night. The reason? To protect the interests of Iranians using the service to protest the presidential election that took place on June 12. Twitter moved the upgrade to 2 p.m. P.T. Tuesday afternoon — or 1:30 a.m. Tehran time. (Read "The Iran Election: Twitter's Big Moment.")
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When Jack Dorsey, Evan Williams and Biz Stone founded Twitter in 2006, they were probably worried about things like making money and protecting people's privacy and drunk college kids breaking up with one another in 140 characters or less. What they weren't worried about was being suppressed by the Iranian government. But in the networked, surreally flattened world of social media, those things aren't as far apart as they used to be — and what began as a toy for online flirtation is suddenly being put to much more serious uses. After the election in Iran, cries of protest from supporters of opposition candidate Mir-Hossein Mousavi arose in all possible media, but the loudest cries were heard in a medium that didn't even exist the last time Iran had an election. (See pictures of Iran's presidential election and its turbulent aftermath.)
So what exactly makes Twitter the medium of the moment? It's free, highly mobile, very personal and very quick. It's also built to spread, and fast. Twitterers like to append notes called hashtags — #theylooklikethis — to their tweets, so that they can be grouped and searched for by topic; especially interesting or urgent tweets tend to get picked up and retransmitted by other Twitterers, a practice known as retweeting, or just RT. And Twitter is promiscuous by nature: tweets go out over two networks, the Internet and SMS, the network that cell phones use for text messages, and they can be received and read on practically anything with a screen and a network connection. (Read about how Twitter is changing the way we live.)