LinkedIn Users Are Getting Personal

People are actually socializing on the social media app?!? Plus: Pharma costs

The LinkedIn app.

Photographer: Edward Smith/Getty Images

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The biggest social media platforms all have their niches. Twitter is for arguing with strangers. Instagram is for showing off the best of your 500 selfies. Facebook is for learning too much about an acquaintance from college. And LinkedIn is for updating the obligatory professional profile when you’re looking for a job, then receiving constant emails prompting you to congratulate someone on their “work anniversary.”