| http://www.w3.org/ns/prov#value | - From (email): Message: At Obsidian Public Relations in Downtown Memphis, it???s not unusual to find employees on Facebook, Twitter, LinkedIn and other social media sites as they handle their clients??? PR needs throughout the day.It???s an interesting scene, considering that less than five years ago, an office full of workers Tweeting, uploading photos and posting Facebook statuses would have rais
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