twInfluence is a simple tool for measuring the combined influence of twitterers and their followers, with a few social network statistics thrown in as bonus.
We know that “A-List” Twitterers like Scoble, LeoLaporte, and BarackObama have a lot of influence on Twitter, because they have tens of thousands of followers. However, social network analysis teaches us that there is a “horizon of communication” that extends beyond your own direct contacts, and this is demonstrated whenever somebody “retweets” a message. The significance is that not all followers are equal.
I’ve come across Twinfluence before and generally I don’t like this kind of approach. I find it hard to understand, therefore my clients would find it hard to understand, and therefore even harder to take appropriate action. I also don’t think you can boil everyone on Twitter down to ‘a score’. HOWEVER, despite myself, I find their explanation page fascinating, especially the charts showing typical profiles and how they change over time. I’m still not sure this is something comms people would go for especially, but it’s a ‘nice to know’.