Hi I trying to build "influence score" for web sites and journals and I was wondering if someone can point me in a right direction as to the model and technique I should use.   Can I model the “influence score” simulate to credit score? Is the Klout score for measuring influence of bloggers a good example of “influence score”? Can I use logistic regression to try to model "influence score" or should I use other models? If anyone has experience in modeling "influence score"  or knows of any good references I would appreciate your response.