Focus groups and social media monitoring tools make it easy for organizations to collect data and consumer responses. There are a few drawbacks connected to brands that marketers need to keep in mind when measuring the success of campaigns. They are- sentiment, dilution and differentiation. To know more, follow the article by Ben Hookway (CEO of Relative Insight) at: http://digitalmarketingmagazine.co.uk/articles/three-critical-things-to-keep-in-mind-with-brand-language