Keyword insights with Google Insights
According to the official Adwords blog, which announced Insights for Search, this new feature is "a new product designed with the advertiser in mind. It provides more flexibility and functionality for advertisers and marketers to understand search behavior, and adds some cool new features like a world heat map to graphically display search volume and regional interest.".
The features should certainly help get an idea of macro trends, which search marketers should definitely factor in during the planning and execution of SEM campaigns. Yet, doubts will continue to linger on the accuracy and reliability of this tool. Andy Beal of Marketing Pilgrim points out precisely why, with a couple of examples.