Last week, LinkedIn began letting advertisers pay to amplify posts from some users through Thought Leader ads, as it enters the market of influencer marketing (Jordan Novet/CNBC)

Jordan Novet / CNBC:
Last week, LinkedIn began letting advertisers pay to amplify posts from some users through Thought Leader ads, as it enters the market of influencer marketing  —  Ryan Roslansky, CEO of Microsoft's LinkedIn subsidiary, speaks at a LinkedIn event in San Francisco on Sept. 22, 2016.