Good morning and Happy Thanksgiving to our US readers. Here are all the advertising stories you need to know today. 1. Sensing its market share was cratering following a September redesign of MSN.com, Microsoft quietly asked comScore to recalibrate how it reports visitor numbers for MSN and Bing. Previously Microsoft's online properties had separate reports for each site, but now Microsoft is bundling all visitors from sites like MSN, Bing and Skype under one banner so it's difficult to get a sense of a month-on-month comparison before and after the redesign.