The 6 Factors of Social Media Influence: Influence Analytics 1

This makes good sense to me, emphasizing from the target's point of view that influencers need to have credibility and to deliver relevant information at the right time and place, for the target/s to take action. What you've written about influencers also accords what what I've read recently, that it's not necessarily the size of the influencer's network, but their passion which is key (which I'm guessing may relate to their perceived credibility). Bearing these points in mind I've asked in a recent blog as to whether community managers should themselves be regarded as key influencers (& therefore a potential revenue driver), despite the risks involved in turning them into "glorified marketeers" if not done correctly.