As the Iranian government restricts journalists' access to events, the protesters have used Twitter's agile communication system to direct the public and journalists alike to video, photographs and written material related to the protests. (As has become established custom on Twitter, users have agreed to mark, or "tag," each of their tweets with the same bit of type -- #IranElection -- so that users can find them more easily). So maybe there was no Twitter Revolution. But over the last week, we learned a few lessons about the strengths and weaknesses of a technology that is less than three years old and is experiencing explosive growth.
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