Are social media campaigns worthless?

Are social media campaigns worthless?
Social network campaigns build ‘slacktivism’ to new heights, but is there real impact behind these digital devotions? A few years ago, when occasionally meaningful but often ironic slacktivism was still in its infancy, Kit Mueller, 36, a Web entrepreneur in Chicago, would have gladly linked virtual arms with 5,000 others and joined an online group for the preservation of old-timey hobos. He …

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