Twitter, Facebook and YouTube now crucial to presidential campaigns

Obama set the 'gold standard' for use of social media, and now it's an absolute must for candidates.

Four years ago, Barack Obama kicked off his presidential campaign on the steps of Illinois' Old State Capitol, speaking in front of thousands of supporters and a throng of media. Earlier this month, when he formally announced his reelection campaign, he did so without public appearance, in an online video.

Source: http://feeds.latimes.com/~r/latimes/news/~3/7tZ9vboJwVQ/la-na-social-media-20110418,0,3650229.story

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