The last edition of the "Web Analytics Rendez-Vous", one of Europe's largest social event on Web Analytics, took place during the VAD e-commerce tradeshow at Lille on October 19th, 2011. Our guest of honour was Matt Bailey, CEO of SiteLogic (USA) and co-author of "Internet Marketing : An Hour a Day", as well as a renowned speaker on SEO and Web Analytics.In this video, Matt presented the following topic: "Webmaster Tools : how to use data provided by Google and Bing ? ".