1. Google has announced that in 2011 it rejected 610,000 websites that contravened its rules: Google, The fight against scam ads -by the numbers;of the terms and conditions used by advertising intermediaries reveals that they prohibit their clients from placing their advertisements on pages containing illegal content,2011
2. How 'Liberty' Disappeared from Cyberspace: The Mystery Shopper Tests Internet Content Self-Regulation, pcmlp.socleg.ox.ac.uk/sites/ pcmlp.socleg.ox.ac.uk/files/liberty.pdf ? Anderson;? Ahlert;Hyperion ? BAE Systems DETICA,2004
3. Green Paper, Towards an integrated European market for card;? Commission;Case n� COMP/M.4731. Google/ DoubleClick ? Commission,2008
4. Procureur Général Près la Cour de Cassation v. Vestwig et al