LinkedIn has redesigned its mobile apps to improve the activity stream and incorporate sponsored content for more than a quarter of their user base that access the networking site on iPhone and Android. LinkedIn is quickly expanding their offering to build out the news feed and encourage conversations on the platform. Also interesting is the addition of content from key influencers outside your network, which in turn makes paid posts feel more native. For brands wanting to reach decision makers, LinkedIn provides plenty of targeting parameters like job title, industry and company size.