From American Congressmen ‘tweeting’ on the floor of the House of Representatives, to CEOs blogging and individuals posting photos for friends worldwide on sites like Facebook, social media’s presence and influence are growing explosively. And with 57% of active internet users now participating in at least one social network (up from 27% in 2006) and Facebook membership reportedly above 200 million, the explosion looks set to continue. So what are the implications for business?

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