Search marketers use plenty of metrics, but there’s a point where they become insufficient. Relying solely on conversion presents a number of challenges. Another approach would be to look at metrics to determine how happy visitors are when they visit your site, and if that happiness could result in a conversion during this visit or a later one. “Happiness metrics” include bounce rate, page views per sessions and time on site. However, these don’t always work either. Here’s a look at what things look like when you correlate happiness metrics and conversion rate. (Search Engine Watch)