As the old saying goes, “I know only half of my marketing is working, but I don’t know which half.” It’s especially true in the world of social media marketing, where measurement of ROI is elusive. The popular listening tools, like Radian6 and BuzzMetrics, monitor a small fraction of the social web (enough for statistical significance) to determine consumer sentiment, but that falls short when trying to understand social campaign performance. Dachis Group launches their Campaign Performance Monitor today, which produces insights like the one below.