1. aitamurto , tanja 2009 “ The Obama-Effect in Journalism: decentralized editorial power ”, Huffington Post, 17 November,http://www.huffingtonpost.com/tanja-aitamurto/the-obama-effect-in-journ_b_357711.html, accessed 12 September 2010 .
2. Coase's Penguin, or, Linux and "The Nature of the Firm"
3. Crowdsourcing as a Model for Problem Solving