Every marketing technique involves, on some level, the understanding and exploiting of ongoing market trends. The reason that this is so vital to marketing is that you must be aware of the desire for your service of product in the current market. If there is no market you may not want to attempt that particular business idea. These tools can help you identify search trends, blog trends and even shopping trends to help you indentify your target market. These tools are especially helpful for niche marketers who want to find an underexploited market.