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Please read this article. A bit interesting, but I do not know how realistic it will be, or how you would implement this. http://money.cnn.com/2013/08/26/technology/social/facebook-credit-score/index.html
Locking thread due to similar thread found here..
http://ficoforums.myfico.com/t5/Credit-in-the-News/Social-networks-could-impact-lending/td-p/2401359