Google is once again the biggest brand in the world, well according to one report at least. Admittedly, the said report is from highly respected market research agency Millward Brown and it has the online search engine titan as top dog in the corporate branding stakes for the second year running. The new Millward Brown list of top 100 brands is once again dominated by technology companies with 6 of the top 10 coming from the IT field. However, previous brand king Microsoft has fallen to third to leave Google as the undisputed brand leader. Or has it, according to…