LinkedIn, the social platform where people look for and talk about work, may be less visible in Microsoft’s earnings compared to the years when it was an independent company. But around earnings time, LinkedIn often reveals some figures that point to how it continues to grow. On Wednesday, as Microsoft reported its Q2 numbers, the company noted that LinkedIn revenue has grown 9% over the last year. And later, in earnings remarks, Microsoft CEO Satya Nadella confirmed that LinkedIn passed a recor...