http://isisweb.com.ar/doscaras.htm

http://esco-benzi.blogspot.com/2009/11/aquiii-va-lo-de-gutembrgg-l-i-b-r-o-s.html

http://rollason.wordpress.com/2011/01/25/umberto-eco-%E2%80%98internet-es-la-vuelta-de-gutenberg%E2%80%99-%E2%80%9Cinternet-gutenberg-strikes-back%E2%80%9D-%E2%80%98el-pais%E2%80%99-22-i-11/

http://esco-lourdes-cantero.blogspot.com/2010/01/documentacion-informativa-de-internet.html

http://tecnovertigo.blogspot.com/2010/10/umberto-eco-de-internet-gutenberg.html