Microsoft's LinkedIn Breaks Engagement and Member Count Records

Perhaps the most prominent dark horse as far as the various social media platforms of the past decade are concerned is quite possibly LinkedIn. It started out as a company that you would get annoying emails about when people you knew would send requests that you would inevitably ignore, but over time the platform developed an audience of its own and after it was acquired by Microsoft who were looking to broaden their horizons and enter the social networking game, things really started to take off in a way that many would have considered to be pretty much impossible some time ago.