Few companies these days aren't tracking measures and metrics for their Web sites. Some companies focus on raw measurements such as visits and page views; others report complex KPIs like conversion rates, bounce rates and visitor engagement. The technology to generate this data is pretty mature - Omniture, Visual Sciences, WebTrends and others are able to gather a rich set of data across the online channel. Visualization interfaces are increasingly easy to use, reporting options diverse, and customer support is, by and large, improving every year.