http://www.neteco.com/article_20051026175414_microsoft_peut_il_mieux_faire_que_google.html
http://today.reuters.fr/news/newsArticle.aspx?type=technologyNews&storyID=2005-10-26T100745Z_01_DEM636458_RTRIDST_0_OFRIN-MICROSOFT-YAHOO-BIBLIOTHEQUE-NUMERIQUE-20051.XML